sailor boy vs striker

sailor boy and striker both are nouns.

Word	Noun	Adjective	Verb	Adverb
sailor boy	Yes	No	No	No
striker	Yes	No	No	No

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

Other hyponyms of sailor boy include coastguardsman, Navy SEAL, SEAL, submariner.

sailor boy (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