trip up vs get a line

trip up and get a line both are verbs.

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

As verbs, get a line is a hypernym of trip up; that is, get a line is a word with a broader meaning than trip up:

Other hypernyms of trip up include discover, find out, get wind, get word, hear, learn, pick up, see.

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