checker vs check girl

checker and check girl both are nouns.

Word	Noun	Adjective	Verb	Adverb
checker	Yes	No	Yes	No
check girl	Yes	No	No	No

As nouns, check girl is a hyponym of checker; that is, check girl is a word with a more specific, narrower meaning than checker:

Other hyponyms of checker include hatcheck girl.

checker (noun)	check girl (noun)
one of the flat round pieces used in playing the game of checkers	a female checker
one who checks the correctness of something
an attendant who checks coats or baggage

checker (verb)	check girl (verb)
variegate with different colors, shades, or patterns
mark into squares or draw squares on; draw crossed lines on