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epoch

noun

  1. (time period)  a period marked by distinctive character or reckoned from a fixed point or event
    Synonyms: era. Type of: time period
  2. (astronomy)  an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
    Synonyms: date of reference. Topic: astronomy. Type of: date
  3. (geological time)  a unit of geological time that is a subdivision of a period and is itself divided into ages
    Type of: geological time. Part of: geological period

Etymology summary

epocha, "point marking the start of a new period in time" (for example, the...
(Source: Online Etymology)  [more]

Definition references

Collins Dictionary:

epoch | era [synonym, sense-specific]

a point in time beginning a new or distinctive period | a long period of time marked by some predominant or typical characteristic; era | [astronomy] ... (24 of 563 words, 5 definitions, 11 usage examples, pronunciation)

www​.collinsdictionary​.com​/dictionary​/english​/epoch

Wikipedia:

Epoch [disambiguation] | EPOCH

may refer to: Epoch (reference date), a moment in time chosen as the origin of a particular era | Epoch (geology) or geologic epoch, a span of time smaller than a period and larger than an age | Epoch (cosmology) or cosmologic epoch, a phase in the ... (45 of 387 words, 27 definitions)

en​.wikipedia​.org​/wiki​/Epoch

Merriam-Webster:

epoch | day [synonym, sense-specific] | age [synonym, sense-specific] | era [synonym, sense-specific] | period [synonym, sense-specific] | time [synonym, sense-specific] | cycle [similar, sense-specific] | generation [similar, sense-specific] | year [similar, sense-specific] | ...

an event or a time marked by an event that begins a new period or development ; a memorable event or date | an extended period of time usually ... (28 of 183 words, 3 definitions, pronunciation)

www​.merriam-webster​.com​/dictionary​/epoch

Random House Dictionary:

epoch

a particular period of time marked by distinctive features, events, etc.. | the beginning of a distinctive period in the history of anything. | a ... (23 of 175 words, 6 definitions, 3 usage examples, pronunciation)

dictionary​.infoplease​.com​/epoch

Oxford Dictionary:

epoch

a particular period of time in history or a person's life | the beginning of a period in the history of someone or something | [geology] : a division ... (27 of 155 words, 4 definitions, 3 usage examples, pronunciation)

oxforddictionaries​.com​/definition​/english​/epoch

New World Dictionary:

epoch | epochal [adjective, related] | epochally [adverb, related]

the beginning of a new and important period in the history of anything | a period of time considered in terms of noteworthy and characteristic events, ... (25 of 122 words, 5 definitions, 2 usage examples, pronunciation)

www​.yourdictionary​.com​/epoch

Wiktionary:

epoch | epochs [plural] | era [synonym, sense-specific] | age [epoch is a subcategory of era and/or age, synonym, sense-specific]

A particular period of history, especially one considered remarkable or noteworthy. | A notable event which marks the beginning of such a period. | [astronomy] A precise instant of time that is used as a reference point. | [computing, uncountable] A ... (38 of 84 words, 4 definitions, 1 usage example, pronunciations)

en​.wiktionary​.org​/wiki​/epoch

American Heritage Dictionary:

epoch

A particular period of history, especially one considered remarkable or noteworthy. | A notable event that marks the beginning of such a period. | A ... (23 of 75 words, 4 definitions, pronunciation)

www​.yourdictionary​.com​/epoch

Britannica Encyclopedia:

epoch [geologic time]

unit of geological time during which a rock series is deposited. It's a subdivision of a geological period, and the word is capitalized when employed ... (25 of 66 words)

www​.britannica​.com​/E​Bchecked​/topic​/190456​/epoch

Columbia Encyclopedia:

epoch

unit of geologic time that is a subdivision of a period. The Pleistocene and Holocene epochs, for example, are divisions of the Quaternary period. ... (24 of 52 words)

www​.infoplease​.com​/ce​6​/sci​/A​0817514​.html

Macmillan British Dictionary:

epoch [countable] | epochs [plural]

a long period of time in the history of a people or place ; a particular period of past time in geology (22 of 45 words, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/epoch

Cambridge Dictionary:

epoch | epochs [plural]

a long period of time, especially one in which there are new developments and great change (16 of 41 words, 1 usage example, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/epoch

Encarta Dictionary:

epoch | epochs [plural]

a significant period in history or in somebody's life | the beginning of a long period of history considered particularly significant | a unit of ... (23 of 136 words, 4 definitions, pronunciations)

encarta​.msn​.com​/dictionary 1861608902​/definition​.html  [offline]

Etymology references

Online Etymology:

epoch

First use: 1610s

Origin: epocha, "point marking the start of a new period in time" (for example, the founding of Rome, the birth of Christ, the Hegira), from Late Latin ... (27 of 68 etymology words)

www​.etymonline​.com​/index​.php term=epoch

Wiktionary:

epoch | epochs [plural]

Origin: Medieval Latin epocha, from Ancient Greek ἐποχή (epokhē, "a check, cessation, stop, pause, epoch of a star, e.g., the point at which it seems to halt after reaching the highest, and generally the place of a star; hence,... (38 of 57 etymology words)

en​.wiktionary​.org​/wiki​/epoch

Oxford Dictionary:

epoch

First use: early 17th century

Origin: (in the Latin form epocha; originally in the general sense of a date from which succeeding years are numbered): from modern Latin ... (25 of 53 etymology words)

oxforddictionaries​.com​/definition​/english​/epoch

New World Dictionary:

epoch

Origin: Medieval Latin epocha from Greek epochē, a check, cessation from epechein, to hold in, check from epi-, upon + echein, to hold: see "scheme"

www​.yourdictionary​.com​/epoch

Merriam-Webster:

epoch

First use: 1614

Origin: Medieval Latin epocha, from Greek epochē cessation, fixed point, from epechein to pause, hold back, from epi- + echein to hold

www​.merriam-webster​.com​/dictionary​/epoch

American Heritage Dictionary:

epoch

Origin: Medieval Latin epocha, measure of time, from Greek epokhē, a point in time; see segh- in Indo-European roots.

www​.yourdictionary​.com​/epoch

Collins Dictionary:

epoch

First use: 17th century

Origin: from New Latin epocha, from Greek epokhē cessation; related to ekhein to hold, have

www​.collinsdictionary​.com​/dictionary​/english​/epoch

Encarta Dictionary:

epoch | epochs [plural]

First use: Early 17th century

Origin: modern Latin epocha from Greek epokhē "pause (in time)" from ekhein "to hold"

encarta​.msn​.com​/dictionary 1861608902​/definition​.html  [offline]

Audio references

Wiktionary:

epoch | epochs [plural]

Audio: North American English pronunciation of "epoch"

en​.wiktionary​.org​/wiki​/epoch

Collins Dictionary:

epoch

Audio 1: North American English pronunciation of "epoch"

Audio 2: British English pronunciation of "epoch"

www​.collinsdictionary​.com​/dictionary​/english​/epoch

Macmillan American Dictionary:

epoch [countable] | epochs [plural]

Audio 1: North American pronunciation of "epoch"

Audio 2: North American pronunciation of "epoch"

www​.macmillandictionary​.com​/dictionary​/american​/epoch

Macmillan British Dictionary:

epoch [countable] | epochs [plural]

Audio: British English pronunciation of "epoch"

www​.macmillandictionary​.com​/dictionary​/british​/epoch

Cambridge Dictionary:

epoch | epochs [plural]

Audio 1: British English pronunuciation of "epoch"

Audio 2: North American English pronunuciation of "epoch"

dictionary​.cambridge​.org​/dictionary​/british​/epoch

the Free Dictionary:

epoch

Audio 1: North American English pronunciation of "epoch"

Audio 2: British English pronunciation of "epoch"

Audio 3: North American English pronunciation of "epoch" by speech synthesizer

www​.thefreedictionary​.com​/epoch

Google Dictionary:

epoch | epochs [plural]

Audio: English pronunciation of "epoch"

www​.google​.com​/#hl=en&tbs=dfn​:1&fp=1&q=epoch

Merriam-Webster Pronunciation:

epoch

Audio: North American pronunciation of "epoch"

www​.merriam-webster​.com​/audio​.php file=epoch​002 word=epoch

epoch

Audio: North American pronunciation of "epoch"

www​.merriam-webster​.com​/audio​.php file=epoch​001 word=epoch

YourDictionary Audio:

epoch

Audio: North American English pronunciation of "epoch" by speech synthesizer

www​.yourdictionary​.com​/epoch

freedictionary.org:

Epoch

Audio: North American English pronunciation of "Epoch" by speech synthesizer

freedictionary​.org​/ Query=epoch

Page last updated: 2013-06-26

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