arrest vs stoppage

arrest and stoppage both are nouns.

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

As nouns, arrest and stoppage are synonyms defined as:

Other synonyms of arrest include check, halt, hitch, stay, stop.

arrest (noun)	stoppage (noun)
the act of apprehending (especially apprehending a criminal)	the act of stopping something
the state of inactivity following an interruption	an obstruction in a pipe or tube
	the state of inactivity following an interruption

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