air force officer vs serviceman

air force officer and serviceman both are nouns.

Word	Noun	Adjective	Verb	Adverb
air force officer	Yes	No	No	No
serviceman	Yes	No	No	No

As nouns, serviceman is a hypernym of air force officer; that is, serviceman is a word with a broader meaning than air force officer:

air force officer: an officer in the airforce
serviceman: someone who serves in the armed forces; a member of a military force

Other hypernyms of air force officer include man, military man, military personnel.

air force officer (noun)	serviceman (noun)
an officer in the airforce	someone who serves in the armed forces; a member of a military force