noun
onesie
WUHN-zee
Onesie (noun) means a one-piece garment, especially a snap-up outfit for a baby worn over a diaper. Example: “They dressed the newborn in a soft cotton onesie.”
noun
1
A one-piece garment, especially a snap-up outfit for a baby worn over a diaper.
"They dressed the newborn in a soft cotton onesie."
2
A one-piece loungewear suit or costume worn by adults or teenagers, often for comfort or fun.
"She wore a fleece onesie to the pajama party."
How to use onesie
Learner’s notesIn plain EnglishA one-piece outfit — either baby wear or a cozy adult loungewear suit.
Common pairings
baby onesie
fleece onesie
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Word forms
- Plural
- onesies
Fill the gap
Can you complete this real example?
They dressed the newborn in a soft cotton _____.
Etymology
Originally a trademarked name (Onesies) from the Gerber Childrenswear brand, which became a generic term over time.
Rhymes for onesie
See all rhymes for onesie →Frequently asked questions
What does “onesie” mean?
The word “onesie” means a one-piece garment, especially a snap-up outfit for a baby worn over a diaper. In plain terms, a one-piece outfit — either baby wear or a cozy adult loungewear suit.
How do you pronounce “onesie”?
“Onesie” is pronounced WUHN-zee (/ˈwʌn.zi/ in IPA).
How do you use “onesie” in a sentence?
Here is “onesie” used in a sentence: “They dressed the newborn in a soft cotton onesie.”
What part of speech is “onesie”?
“Onesie” is a noun.
How many meanings does “onesie” have?
“Onesie” has 2 distinct senses listed in this dictionary. The most common is: a one-piece garment, especially a snap-up outfit for a baby worn over a diaper.
