contend vs rub along

contend and rub along both are verbs.

Word	Noun	Adjective	Verb	Adverb
contend	No	No	Yes	No
rub along	No	No	Yes	No

As verbs, rub along is a hyponym of contend; that is, rub along 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
rub along: manage one's existence barely

contend (verb)	rub along (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