onesie

noun

one·​sie ˈwən-zē How to pronounce onesie (audio)
plural onesies
1
: a bodysuit for an infant having a snap closure at the crotch and not covering the legs
… her husband, Prince William, gratefully accepted a onesie labeled "Daddy's Little Co-Pilot" from a well-wisher …Michelle Tauber et al.
2
: a one-piece garment for adults usually with long sleeves and pants and sometimes with a hood
All eyes were on Pharrell Williams' wife, Helen Lasichanh, during the Met Gala on May 1, but it was for all the wrong reasons. We were hoping Helen would show off her amazing post-baby body after birthing triplets, but instead, she covered her body in a giant red onesie that some Twitter users were comparing to the red Teletubbie!Christopher Rogers

Examples of onesie in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The clip shared on X—which used to be —showed the tot sat on the floor of a living room clad in a onesie. Julia Hunt, Newsweek, 6 Nov. 2024 In the snap, Justin held their baby boy, who wore a pink onesie and a matching hat. Escher Walcott, People.com, 2 Nov. 2024 Her favorite fit for a 90-minute hot yoga class is this onesie. Jesa Marie Calaor, Allure, 27 Oct. 2024 The baby registry may cover all manner of baby gifts like onesies and swaddles, but these gifts are all about her. Talia Abbas, Glamour, 18 Sep. 2024 See all Example Sentences for onesie 

Word History

Etymology

one entry 1 + -sie (after the trademark Onesies)

First Known Use

1983, in the meaning defined at sense 1

Time Traveler
The first known use of onesie was in 1983

Dictionary Entries Near onesie

Cite this Entry

“Onesie.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onesie. Accessed 28 Nov. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!