Word.ws English Dictionary

onsie

onsie is the alternative form of onesie.

Meaning of onesie

Noun

onesie (plural onesies)

  1. (US) A one-piece garment for an infant or small child, generally worn over a diaper.
    • It was once considered taboo to even suggest that new motherhood was not all sunshine onesies and rainbow mobiles, and “Baby Ruby” arrives on a welcome wave of contemporary movies exploring how the joys of child rearing can commingle with misery.2023 February 2, Natalia Winkelman, “‘Baby Ruby’ Review: Enfant Terrible”, in The New York Times
  2. A one-piece adult loungewear jumpsuit.
  3. A one-piece fashionable streetwear worn mostly by teenagers.

Forms of onsie

pluralonsies

Questions about onsie

What is onsie the alternative form of?
Onsie is the alternative form of onesie.

Words near onsie in the dictionary

  1. onshoring
  2. onside
  3. onside kick
  4. onside kicks
  5. onsides
  6. onsie
  7. onsies
  8. onsight
  9. onsighted
  10. onsighting
  11. onsights

Source and license

Adapted from Wiktionary: onsie (page history and authors); onesie (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “onsie.” Word.ws, https://word.ws/onsie. Based on Wiktionary, CC BY-SA 4.0.