fend vs get by

fend and get by both are verbs.

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

As verbs, get by is a hypernym of fend; that is, get by is a word with a broader meaning than fend:

fend: try to manage without help
get by: succeed in doing, achieving, or producing (something) with the limited or inadequate means available

Other hypernyms of fend include contend, cope, deal, grapple, make do, make out, manage.

fend (verb)	get by (verb)
withstand the force of something	escape potentially unpleasant consequences; get away with a forbidden action
try to manage without help	pass or move in front of
	succeed in doing, achieving, or producing (something) with the limited or inadequate means available