date vs epoch

date and epoch both are nouns.

date is a verb but epoch is not a verb.

Word	Noun	Adjective	Verb	Adverb
date	Yes	No	Yes	No
epoch	Yes	No	No	No

As nouns, epoch is a hyponym of date; that is, epoch is a word with a more specific, narrower meaning than date:

date: the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred
epoch: (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded

Other hyponyms of date include date of reference.

date (noun)	epoch (noun)
sweet edible fruit of the date palm with a single long woody seed	a period marked by distinctive character or reckoned from a fixed point or event
a meeting arranged in advance	a unit of geological time that is a subdivision of a period and is itself divided into ages
a participant in a date	(astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded
the specified day of the month
the present
the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred
a particular day specified as the time something happens

date (verb)	epoch (verb)
assign a date to; determine the (probable) date of
provide with a dateline; mark with a date
stamp with a date
go on a date with
date regularly; have a steady relationship with

Difference between date and epoch

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