stoppage vs arrest

stoppage and arrest both are nouns.

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

As nouns, stoppage and arrest are synonyms defined as:

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

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

stoppage (verb)	arrest (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