get a line vs trip up

get a line and trip up both are verbs.

Word	Noun	Adjective	Verb	Adverb
get a line	No	No	Yes	No
trip up	No	No	Yes	No

As verbs, trip up is a hyponym of get a line; that is, trip up is a word with a more specific, narrower meaning than get a line:

Other hyponyms of get a line include get the goods, wise up, catch, ascertain.

get a line (verb)	trip up (verb)
get to know or become aware of, usually accidentally	detect a blunder or misstep
	make an error
	cause to stumble