hijack vs crime

hijack and crime both are nouns.

Word	Noun	Adjective	Verb	Adverb
hijack	Yes	No	Yes	No
crime	Yes	No	No	No

As nouns, crime is a hypernym of hijack; that is, crime is a word with a broader meaning than hijack:

hijack: seizure of a vehicle in transit either to rob it or divert it to an alternate destination
crime: (criminal law) an act punishable by law; usually considered an evil act

Other hypernyms of hijack include criminal offence, criminal offense, law-breaking.

hijack (noun)	crime (noun)
seizure of a vehicle in transit either to rob it or divert it to an alternate destination	(criminal law) an act punishable by law; usually considered an evil act
	an evil act not necessarily punishable by law

hijack (verb)	crime (verb)
take arbitrarily or by force
seize control of