arrester hook vs constraint

arrester hook and constraint both are nouns.

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

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

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

Other hypernyms of arrester hook include restraint.

arrester hook (noun)	constraint (noun)
a restraint that slows airplanes as they land on the flight deck of an aircraft carrier	the act of constraining; the threat or use of force to control the thoughts or behavior of others
	a device that retards something's motion
	the state of being physically constrained