wine waiter vs wine steward

wine waiter and wine steward both are nouns.

Word	Noun	Adjective	Verb	Adverb
wine waiter	Yes	No	No	No
wine steward	Yes	No	No	No

As nouns, wine waiter and wine steward are synonyms defined as:

wine waiter and wine steward: a waiter who manages wine service in a hotel or restaurant

Other synonyms of wine waiter include sommelier.

wine waiter (noun)	wine steward (noun)
a waiter who manages wine service in a hotel or restaurant	a waiter who manages wine service in a hotel or restaurant