steward vs hostess

steward and hostess both are nouns.

Word	Noun	Adjective	Verb	Adverb
steward	Yes	No	No	No
hostess	Yes	No	No	No

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

Other hyponyms of steward include air hostess, stewardess, air host.

steward (noun)	hostess (noun)
someone who manages property or other affairs for someone else	a woman innkeeper
a union member who is elected to represent fellow workers in negotiating with management	a woman steward on an airplane
one having charge of buildings or grounds or animals	a woman host
an attendant on an airplane
the ship's officer who is in charge of provisions and dining arrangements