(medicine) Triple X syndrome.

An abbreviation for kisses, usually placed at the end of a letter or text message, often alongside ooo (hugs).

(chiefly clothing) Initialism of extra extra large (the manufactured size or an item of that size).

(chiefly clothing) Initialism of extra extra large (of the manufactured size).

present participle of XXX

Third-person singular simple present indicative form of XXX

Having an aneuploidy in the configuration of chromosomes by having an extra Y chromosome.

Third-person singular simple present indicative form of XXX

simple past tense and past participle of XXX

(chiefly clothing) Initialism of extra extra extra large (the manufactured size or an item of that size).