peak vs time period

peak and time period both are nouns.

Word	Noun	Adjective	Verb	Adverb
peak	Yes	No	Yes	No
time period	Yes	No	No	No

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

Other hypernyms of peak include period, period of time.

peak (noun)	time period (noun)
a brim that projects to the front to shade the eyes	an amount of time
the top or extreme point of something (usually a mountain or hill)
the highest point (of something)
the most extreme possible amount or value
a V shape
the highest level or degree attainable; the highest stage of development
the period of greatest prosperity or productivity

peak (verb)	time period (verb)
to reach the highest point; attain maximum intensity, activity