contend vs scrape by

contend and scrape by both are verbs.

Word	Noun	Adjective	Verb	Adverb
contend	No	No	Yes	No
scrape by	No	No	Yes	No

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

contend: succeed in doing, achieving, or producing (something) with the limited or inadequate means available
scrape by: manage one's existence barely

contend (verb)	scrape by (verb)
to make the subject of dispute, contention, or litigation	manage one's existence barely
have an argument about something
maintain or assert
compete for something; engage in a contest; measure oneself against others
be engaged in a fight; carry on a fight
succeed in doing, achieving, or producing (something) with the limited or inadequate means available