arrester vs restraint

arrester and restraint both are nouns.

Word	Noun	Adjective	Verb	Adverb
arrester	Yes	No	No	No
restraint	Yes	No	No	No

As nouns, restraint is a hypernym of arrester; that is, restraint is a word with a broader meaning than arrester:

arrester: a restraint that slows airplanes as they land on the flight deck of an aircraft carrier
restraint: a device that retards something's motion

Other hypernyms of arrester include constraint.

arrester (noun)	restraint (noun)
a restraint that slows airplanes as they land on the flight deck of an aircraft carrier	the act of controlling by restraining someone or something
	a device that retards something's motion
	discipline in personal and social activities
	lack of ornamentation
	a rule or condition that limits freedom
	the state of being physically constrained