cop vs arrest

cop and arrest both are nouns.

Word	Noun	Adjective	Verb	Adverb
cop	Yes	No	Yes	No
arrest	Yes	No	Yes	No

As verbs, cop and arrest are synonyms defined as:

Other synonyms of cop include apprehend, collar, nab, nail, pick up.

cop (noun)	arrest (noun)
uncomplimentary terms for a policeman	the act of apprehending (especially apprehending a criminal)
	the state of inactivity following an interruption

cop (verb)	arrest (verb)
take into custody	hold back, as of a danger or an enemy; check the expansion or influence of
take by theft	take into custody
	attract and fix
	cause to come to an abrupt stop