timekeeper vs escapement

timekeeper and escapement both are nouns.

Word	Noun	Adjective	Verb	Adverb
timekeeper	Yes	No	No	No
escapement	Yes	No	No	No

timekeeper (noun)	escapement (noun)
a measuring instrument or device for keeping time	mechanical device that regulates movement
a clerk who keeps track of the hours worked by employees
(sports) an official who keeps track of the time elapsed