teashop vs tearoom

teashop and tearoom both are nouns.

Word	Noun	Adjective	Verb	Adverb
teashop	Yes	No	No	No
tearoom	Yes	No	No	No

As nouns, teashop and tearoom are synonyms defined as:

teashop and tearoom: a restaurant where tea and light meals are available

Other synonyms of teashop include tea parlor, tea parlour, teahouse.

teashop (noun)	tearoom (noun)
a restaurant where tea and light meals are available	a restaurant where tea and light meals are available