English

Baby wearing a onesie.

Noun

onesie ‎(plural onesies)

1. (US) A one-piece garment for an infant or small child, generally worn over a diaper.
2. One-piece adult loungewear jumpsuit.
3. One-piece fashionable streetwear worn mostly by teenagers.

Synonyms

• (a one-piece baby garment): romper, romper suit

Translations