maillot vs tights

maillot and tights both are nouns.

Word	Noun	Adjective	Verb	Adverb
maillot	Yes	No	No	No
tights	Yes	No	No	No

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

maillot: tights for dancers or gymnasts
tights: skintight knit hose covering the body from the waist to the feet worn by acrobats and dancers and as stockings by women and girls

Other hypernyms of maillot include leotards.

maillot (noun)	tights (noun)
tights for dancers or gymnasts	skintight knit hose covering the body from the waist to the feet worn by acrobats and dancers and as stockings by women and girls
a woman's one-piece bathing suit