overhaul vs get by

overhaul is a noun but get by is not a noun.

Word	Noun	Adjective	Verb	Adverb
overhaul	Yes	No	Yes	No
get by	No	No	Yes	No

As verbs, get by is a hyponym of overhaul; that is, get by is a word with a more specific, narrower meaning than overhaul:

Other hyponyms of overhaul include clear, top.

overhaul (noun)	get by (noun)
periodic maintenance on a car or machine
the act of improving by renewing and restoring

overhaul (verb)	get by (verb)
make repairs, renovations, revisions or adjustments to	escape potentially unpleasant consequences; get away with a forbidden action
travel past	pass or move in front of
	succeed in doing, achieving, or producing (something) with the limited or inadequate means available