pep up vs barrack

pep up is not a noun while barrack is a noun.

Word	Noun	Adjective	Verb	Adverb
pep up	No	No	Yes	No
barrack	Yes	No	Yes	No

As verbs, pep up and barrack are synonyms defined as:

pep up and barrack: spur on or encourage especially by cheers and shouts

Other synonyms of pep up include cheer, exhort, inspire, root on, urge, urge on.

pep up (noun)	barrack (noun)
	a building or group of buildings used to house military personnel

pep up (verb)	barrack (verb)
make more interesting or lively	laugh at with contempt and derision
spur on or encourage especially by cheers and shouts	spur on or encourage especially by cheers and shouts
	lodge in barracks