maillot vs bathing suit

maillot and bathing suit both are nouns.

Word	Noun	Adjective	Verb	Adverb
maillot	Yes	No	No	No
bathing suit	Yes	No	No	No

As nouns, bathing suit is a hypernym of maillot; that is, bathing suit is a word with a broader meaning than maillot:

Other hypernyms of maillot include bathing costume, swimming costume, swimsuit, swimwear.

maillot (noun)	bathing suit (noun)
tights for dancers or gymnasts	tight fitting garment worn for swimming
a woman's one-piece bathing suit