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.
Coyne is next to them, holding Edward, who wears a grey onesie in his arms. Daniel R. Depetris, Newsweek, 25 Mar. 2025 Medina’s fanciful dog costumes mostly combine monochrome onesies with patches and other accessories for a cheery array of colors, while MC Dog’s costume nods to traditional Latin American patterns and Hattie’s hot pink look is accented with ruffles and glitter. Emily McClanathan, Chicago Tribune, 19 Mar. 2025 In the snap, their son could be seen wearing a cute green onesie and a beanie as well as tiny white socks. Ilana Kaplan, People.com, 3 Mar. 2025 Sanders pointed to photos of baby onesies sold by Children’s Health Defense, a nonprofit that has launched lawsuits against the federal government over vaccines. Lauren Irwin, The Hill, 29 Jan. 2025 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

Browse Nearby Words

Cite this Entry

“Onesie.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onesie. Accessed 31 Mar. 2025.

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