Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definitions: Epoch |
EpochNoun1. A period marked by distinctive character or reckoned from a fixed point or event. 2. (astronomy) the precise date that is the point of reference for which information (as coordinates of a celestial body) is referred. 3. A unit of geological time. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "epoch" was first used in popular English literature: sometime before 1550. (references) |
| Domain | Definitions |
Computing | Epoch n. [Unix: prob. from astronomical timekeeping] The time and date corresponding to 0 in an operating system's clock and timestamp values. Under most Unix versions the epoch is 00:00:00 GMT, January 1, 1970; under VMS, it's 00:00:00 of November 17, 1858 (base date of the U.S. Naval Observatory's ephemerides); on a Macintosh, it's the midnight beginning January 1 1904. System time is measured in seconds or ticks past the epoch. Weird problems may ensue when the clock wraps around (see wrap around), which is not necessarily a rare event; on systems counting 10 ticks per second, a signed 32-bit count of ticks is good only for 6.8 years. The 1-tick-per-second clock of Unix is good only until January 18, 2038, assuming at least some software continues to consider it signed and that word lengths don't increase by then. See also wall time. Microsoft Windows, on the other hand, has an epoch problem every 49.7 days - but this is seldom noticed as Windows is almost incapable of staying up continuously for that long. Source: Jargon File. |
Aerospace | A particular instant for which certain data are valid, as the data for which an astronomical catalogue is computed. (references) |
Mining | A. The formal geochronologic unit, longer than an age and shorter than a period, during which the rocks of the corresponding series were formed b. A term used informally to designate a length (usually short) ofgeologic time; e.g., glacial epoch e.g., glacial epoch. (references) |
Statistics | Number of iterations between the application of the genetic algorithm. An epoch, (a block of learning cycles)is performed so that the present population of classifiers can be ranked. After an epoch has completed the classifiers are bred via a genetic algorithm to(hopefully)discover a better set of classifiers. After the GA is applied the new population starts another epoch of learning cycles. The entire process is repeated until the population performs to some standard. Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
| The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted. | |||
| Entry | Source | Expression | Field |
EPOCH | English | European programme on climatology and natural hazards(1989-92) | Geography |
Source: compiled by the editor, based on several corpora (additional references). | |||
Synonyms: EpochSynonyms: date of reference (n), era (n). (additional references) |
| Context | Synonyms within Context (source: adapted from Roget's Thesaurus). |
Instantaneity | Noun: chronometry, horometry, horology; date, epoch; style, era. |
Epoch, time; time of day, time of night; hour, minute; very minute; very time, very hour; present time, right time, true time, exact correct time. | |
Period | Noun: period, age, era; second, minute, hour, day, week, month, quarter, year, decade, decenniumm lustrum, quinquennium, lifetime, generation; epoch, ghurry, lunation, moon. |
The Present Time | Noun: the present, the present time, the present day, the present moment, the present juncture, the present occasion; the times, the existing time, the time being; today, these days, nowadays, our times, modern times, the twentieth century; nonce, crisis, epoch, day, hour. |
Time | Era, epoch; time of life, age, year, date; decade; (period); moment; (instant). |
| Source: adapted from Roget's Thesaurus. | |
Crosswords: Epoch |
| English words defined with "epoch": Acadian epoch, Antiochian epoch ♦ Bowlder clay ♦ Calciferous epoch, Cauda galli epoch, Chazy epoch, Chronogram, Cincinnati epoch ♦ Drift epoch ♦ Elephantine epoch, Emergent year, Eocene epoch, Epi-, Epocha ♦ Genesee epoch, glacial epoch ♦ Holocene epoch ♦ ice age, Incunabulum ♦ Julian epoch ♦ Liriodendron tulipifera ♦ Medina epoch, Miocene epoch, Moon's age ♦ Niagara period ♦ Oligocene epoch ♦ Paleocene epoch, Pleistocene epoch, Pliocene epoch ♦ Recent epoch ♦ Terrace epoch, The period. (references) |
| Specialty definitions using "epoch": Boyle Controversy ♦ Cordilleran ice sheet ♦ EHTS, ephemeris second ♦ Galilei, Galileo, geomagnetic polarity event, Gregorian Epoch ♦ Hyper-Man ♦ ice sheet, isogonal ♦ Medieval Warm Epoch, metallogenetic epoch, minerogenetic epoch ♦ osculating orbit ♦ polarity event ♦ tights. (references) |
| Domain | Usage | |
Movie/TV Titles | Epoch (2000) | |
Source: compiled by the editor from various references; see credits. | ||
| Domain | Title | ||
References | |||
Books |
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Theater & Movies | |||
Music |
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Source: compiled by the editor from various references; see credits. | |||
| Thumbnail | Description & Credit |  | Inlaid bronze brooch of the pagan epoch.Credit: Library of Congress. |
Source: compiled by the editor from various references; see credits. | |||
| Author | Quotation |
Robert Louis Stevenson | The obscurest epoch is to-day. |
Source: compiled by the editor from various references. | |
| Author | Date | Quotation |
Communist Manifesto | 1848 | Constant revolutionising of production, uninterrupted disturbance of all social conditions, everlasting uncertainty and agitation distinguish the bourgeois epoch from all earlier ones. (reference) |
Source: compiled by the editor from various references. | ||
| Title | Author | Quote |
Scarlet Letter | Hawthorne, Nathaniel | But, up to that epoch of my life, I had lived in vain. |
Les Miserables | Hugo, Victor | At that epoch the king, Louis XVIII. |
Source: compiled by the editor from various references. | ||
| Subject | Topic | Quote |
Economic History | Kazakhstan | Adoption of the Law on Leasing in 2000 paved the way for the new epoch in development of leasing services in Kazakhstan. (references) |
Lexicography | Devil's Dictionary | TIGHTS, n. An habiliment of the stage designed to reinforce the general acclamation of the press agent with a particular publicity. Public attention was once somewhat diverted from this garment to Miss Lillian Russell's refusal to wear it, and many were the conjectures as to her motive, the guess of Miss Pauline Hall showing a high order of ingenuity and sustained reflection. It was Miss Hall's belief that nature had not endowed Miss Russell with beautiful legs. This theory was impossible of acceptance by the male understanding, but the conception of a faulty female leg was of so prodigious originality as to rank among the most brilliant feats of philosophical speculation! It is strange that in all the controversy regarding Miss Russell's aversion to tights no one seems to have thought to ascribe it to what was known among the ancients as "modesty." The nature of that sentiment is now imperfectly understood, and possibly incapable of exposition with the vocabulary that remains to us. The study of lost arts has, however, been recently revived and some of the arts themselves recovered. This is an epoch of renaissances, and there is ground for hope that the primitive "blush" may be dragged from its hiding-place amongst the tombs of antiquity and hissed on to the stage. |
Source: compiled by the editor from ICON Group International, Inc.; see credits. | ||
| Speaker | Term | Phrase(s) |
James Monroe | 1817-1825 | Our institutions form an important epoch in the history of the civilized world. |
Source: compiled by the editor from various references. | ||
| "Epoch" is generally used as a noun (singular) -- approximately 99.38% of the time. "Epoch" is used about 162 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (singular) | 99.38% | 161 | 24,661 |
| Noun (proper) | 0.62% | 1 | 339,140 |
| Total | 100.00% | 162 | N/A |
Source: compiled by the editor from several corpora; see credits.
| Country | Name |
| USA | Epoch Biosciences, Inc. |
| (more examples...) |
Source: compiled by the editor from Icon Group International, Inc.
Expressions using "epoch": Acadian epoch ♦ Antiochian epoch ♦ beginning of new epoch ♦ Calciferous epoch ♦ Cauda galli epoch ♦ Chazy epoch ♦ Cincinnati epoch ♦ drift epoch ♦ Elephantine epoch ♦ Eocene epoch ♦ epoch making ♦ epoch or period ♦ Genesee epoch ♦ geomagnetic polarity epoch ♦ glacial epoch ♦ golden epoch ♦ H epoch ♦ Hallstattian epoch ♦ holocene epoch ♦ Julian epoch ♦ Medieval Warm Epoch ♦ Medina epoch ♦ Miocene epoch ♦ Oligocene epoch ♦ Paleocene epoch ♦ Pleistocene epoch ♦ Pliocene epoch ♦ polarity epoch ♦ Recent epoch ♦ secondary epoch ♦ Terrace epoch ♦ usher in a new epoch. Additional references. | |
| Hyphenated Usage | |
Beginning with "epoch": epoch-making. | |
| Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Language | Translations for "epoch"; alternative meanings/domain in parentheses. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Afrikaan | tydperk (age, era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Albanian | epokë (age, chapter, cycle, day, era, period, time), periudhë (bout, chapter, date, day, hitch, hour, inning, innings, period, phase, run, season, span, stage, streak, stretch, term, tide, time, tour, vintage). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Arabic | فترة من الزمان, فترة (era, interval, period, phase, qualifying period, season, spell, stage, term, time, while), زمان (era, time), عهد (ally, covenant, date, era, pact, period, pledge, promise, rule, testament, time), عصر (age, compress, compressing, crush, date, eon, era, period, press, ream, squeeze, strain, time, update, wring), الحين, دهر (aeon, age, eon, era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bulgarian | век (age, centenary, centennial, century, cycle, period), епоха (age, chapter, date, era, period), период (age, circle, cycle, date, period, phase, repetend, season, spell, term, time). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Chinese | 時代 (age, era, period), 世纪 (Centuries, Century). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Czech | epocha (period, stage), období (period, phase, season, spell, stage, term), doba (age, date, period, space, spell, term, tide, time, times, while). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Danish | epoke (age, era, generation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dutch | týdsgewricht (age, era), týdperk (age, era), generatie (generation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Esperanto | epoko (age, era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Faeroese | tíðarvend (age, era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Farsi | مبداتاریخ , حادثه تاریخی , عصرتاریخی (Era), عصر (Afternoon, Age, Era, Period), اغازفصل جدید, دوره (Age, Career, Circuit, Era, Periphery, Set, Space, Stadium, Stretch, Term). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Finnish | ajanjakso (age, era, period). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
French | époque. (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
German | epoche (age, era, generation, period). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Greek | εποχή (age, era, season, time). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hebrew | תור (course, era, line, queue, turn), תקופ" (age, cycle, era, period, season, space, stage, streak, term, time), "ור (age, era, generation). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Hungarian | korszak (age, cycle, era, period, storm and stress, time), kor (age, cycle, era, estate, period, times we live in). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Indonesian | masa (era, period, season, tense, term), kala (era, period, time), jaman (period), abad (age, centanary, century, era, time). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Italian | epoca (age, days, era, period, time). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Kanji | 劃期 , 時代 (era, period), エポキシ樹脂 (emergency, emergency landing, epaulette, epoch-making, epoxy resin). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Japanese Katakana | かっき (energy, epoch-making, liveliness), エポック , じ い (era, land rent, period, subserviency to the stronger, the next era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manx | amm (age, period, puberty). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Papiamen | époka (age, era). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pig Latin | epochay época (age, date, eradiate, estate, period, tide, time). (various references) ev (age, century), epocã (aeon, age, date, day, era, period, time), veac (age, century, eternity, period, time), timp (age, beat, course, cycle, date, day, distance, era, hour, length, period, season, tense, term, time, weather, while), temporal (temporal), perioadã (age, cycle, date, day, distance, era, lapse, period, repetend, season, stadium, stage, streak, term, tide, time). (various references) эпоха (age, period). (various references) epoha (time, times), vreme (season, spell, tense, time, weather), razdoblje (period, times). (various references) época (age, era, landmark, period, season, spell, term, time, tour). (various references) epok (age, era). (various references) ช่วงเวลาสำคัญในอ"ีต. (various references) devir (age, alienation, assignation, assignment, cession, circle, circulation, circumvolution, currency, cycle, disposal, era, Eyre, grant, gyration, period, release, Rev, revolution, rotation, rounder, spin, take over, transfer, transference, turnover), dönem (circle, date, day, period, semester, session, spell, term), çağ (age, era, period, time, times). (various references) zaman (era, time), dцwьr (period). (various references) ера (aeon, day, era), епоха (age, date, day, period). (various references) mở ra một kỷ nguyên (epochal, epoch-making), đánh dấu một thời kỳ; lịch sử (epochal, epoch-making). (various references) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Language | Period | Translations |
| Greek | 700 BCE-300 CE | epokhe. (various references) |
| Latin | 500 BCE-Modern | aera, aeris, tempus temporis. (various references) |
| Source: compiled by the editor from various references. | ||
Derivations | |
Words beginning with "epoch": epochal, epochally, epochs. (additional references) | |
Words ending with "epoch": subepoch. (additional references) | |
Words containing "epoch": subepochs. (additional references) | |
| |
"Epoch" is suggested in spellcheckers for the following: edoc, eeoc, empacho, enoch, eoc, eoh, eok, epc, epcoh, epich, epith, epo, epoc, Epoca, Epocha, epoche, epocj, epock, epoh, epot, eppoch, evoc, Pepusch, peuch, Poch, upoch. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "epoch" (pronounced e"puk or ē"puk) |
| 3 | -p u k | Kopek. |
| 3 | -p u k | Kopek. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "c-e-h-o-p" | |
-1 letter: chop, cope, echo, hope, pech. | |
-2 letters: cep, cop, hep, hoe, hop, ope, pec, peh, poh. | |
-3 letters: eh, he, ho, oe, oh, op, pe. | |
| Words containing the letters "c-e-h-o-p" | |
+1 letter: cheapo, epochs. | |
+2 letters: cheapos, chomped, chomper, chopine, chopped, chopper, copihue, epochal, hencoop, hospice, panoche, penoche, phocine, poached, poacher, poaches, pooched, pooches, porches, potiche, pouched, pouches, shoepac. | |
+3 letters: apothece, cachepot, canephor, cenotaph, chaperon, chenopod, chompers, chopines, choppers, choppier, copihues, copperah, coryphee, euphonic, euphoric, euphotic, helicopt, hencoops, hospices, hypothec, panoches, penoches, phenolic, phonemic, phonetic, pinochle, poachers, poachier, poechore, postiche, potiches, potlache, pouchier, prochein, prophecy, puncheon, reproach, sheepcot, shoepack, shoepacs, subepoch. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)45 70 6F 63 68 |
| Leonardo da Vinci (1452-1519; backwards) (references)
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| American Sign Language (origins from 1620-1817 in Italy and, especially, France) (references)
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| Semaphore (1791, in France) (references)
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| Braille (1829, in France) (references)
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Morse Code (1836) (references). .--. --- -.-. .... |
| Dancing Men (Sir Arthur Conan Doyle, 1903) (references)
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Binary Code (1918-1938, probably earlier) (references)01000101 01110000 01101111 01100011 01101000 |
HTML Code (1990) (references)E p o c h |
ISO 10646 (1991-1993) (references)0045 0070 006F 0063 0068 |
| British Sign Language (Fingerspelling, BSL; 1992, British Deaf Association Dictionary of British Sign Language) (references)
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Encryption (beginner's substitution cypher): (references)3982816974 |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Modern | 5. Usage: Commercial 6. Images: Slideshow 7. Images: Photo Album 8. Quotations: Familiar | 9. Quotations: Historic 10. Quotations: Fiction 11. Quotations: Non-fiction 12. Quotations: Speeches | 13. Usage Frequency 14. Names: Company Usage 15. Expressions 16. Expressions: Internet | 17. Translations: Modern 18. Translations: Ancient 19. Abbreviations 20. Acronyms | 21. Derivations 22. Rhymes 23. Anagrams 24. Orthography | 25. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
