evening vs eve

evening and eve both are nouns.

Word	Noun	Adjective	Verb	Adverb
evening	Yes	No	No	No
eve	Yes	No	No	No

As nouns, evening and eve are synonyms defined as:

evening and eve: the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)

Other synonyms of evening include even, eventide.

evening (noun)	eve (noun)
the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)	the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)
a later concluding time period	the day before
the early part of night (from dinner until bedtime) spent in a special way	the period immediately before something