evening vs period

evening and period both are nouns.

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

As nouns, period is a hypernym of evening; that is, period is a word with a broader meaning than evening:

Other hypernyms of evening include period of time, time period.

As nouns, period is a hypernym of evening; that is, period is a word with a broader meaning than evening:

evening: the early part of night (from dinner until bedtime) spent in a special way
period: an amount of time

Other hypernyms of evening include period of time, time period.

evening (noun)	period (noun)
the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)	a punctuation mark (.) placed at the end of a declarative sentence to indicate a full stop or after abbreviations
a later concluding time period	the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
the early part of night (from dinner until bedtime) spent in a special way	an amount of time
	the interval taken to complete one cycle of a regularly repeating phenomenon
	a unit of geological time during which a system of rocks formed
	the end or completion of something
	(ice hockey) one of three divisions into which play is divided in hockey games