bluejacket vs striker

bluejacket and striker both are nouns.

Word	Noun	Adjective	Verb	Adverb
bluejacket	Yes	No	No	No
striker	Yes	No	No	No

As nouns, striker is a hyponym of bluejacket; that is, striker is a word with a more specific, narrower meaning than bluejacket:

Other hyponyms of bluejacket include coastguardsman, Navy SEAL, SEAL, submariner.

bluejacket (noun)	striker (noun)
a serviceman in the navy	the part of a mechanical device that strikes something
	an employee on strike against an employer
	someone receiving intensive training for a naval technical rating
	a forward on a soccer team
	someone who hits