serviceman

As a noun serviceman is

a man who serves in the armed forces.

As nouns the difference between servicemen and serviceman

is that servicemen is while serviceman is a man who serves in the armed forces.

As nouns the difference between serviceman and business

is that serviceman is a man who serves in the armed forces while business is (countable) a specific commercial enterprise or establishment.

As an adjective business is

of, to, pertaining to or utilized for purposes of conducting trade, commerce, governance, advocacy or other professional purposes.

As nouns the difference between serviceman and servicemember

is that serviceman is a man who serves in the armed forces while servicemember is a serviceman or servicewoman.

As nouns the difference between serviceman and amerasian

is that serviceman is a man who serves in the armed forces while amerasian is a person of mixed american and asian parentage, especially if their father was an american serviceman or temporary resident stationed in asia during the vietnam era.

As an adjective amerasian is

of mixed american and asian parentage.

As nouns the difference between serviceman and serviceperson

is that serviceman is a man who serves in the armed forces while serviceperson is a serviceman or servicewoman.