arrester vs arrester hook

arrester and arrester hook both are nouns.

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

As nouns, arrester and arrester hook are synonyms defined as:

arrester and arrester hook: a restraint that slows airplanes as they land on the flight deck of an aircraft carrier

arrester (noun)	arrester hook (noun)
a restraint that slows airplanes as they land on the flight deck of an aircraft carrier	a restraint that slows airplanes as they land on the flight deck of an aircraft carrier