steward vs chamberlain

steward and chamberlain both are nouns.

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

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

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