Sweater vs. Jumper
The regional equivalence works only for the knitted-garment sense. Because “jumper” has an additional US clothing sense, region and garment type should stay explicit.
For the knitted upper-body garment, British English commonly uses “jumper” where American English uses “sweater.” In US English, however, “jumper” can also name a different sleeveless dress-like garment.
Key details
Choose the right form
| Meaning / context | Use | Decision |
|---|---|---|
| US knitted upper-body garment | sweater | Use the ordinary US term. |
| UK knitted upper-body garment | jumper | Use the ordinary UK term. |
| US sleeveless dress worn over another garment | jumper | This is a different US sense, not a synonym for every sweater. |
Quick tests
Decision test
Are you naming the knitted upper-body garment for a US or UK audience?
If yes: Use “sweater” in US wording or “jumper” in UK wording.
If no: If “jumper” means the separate US sleeveless-dress garment, the terms are not interchangeable.
Caveat: Keep both region and garment sense explicit; do not claim every use of “jumper” worldwide means “sweater.”
Examples
She packed a warm jumper for the cold evening.
UK English commonly uses “jumper” for the knitted garment.
He wore a wool sweater over his shirt.
US English commonly uses “sweater” for the knitted garment.
The child wore a jumper over a blouse.
In US clothing vocabulary, “jumper” can name a different sleeveless garment.
Further guidance
Core difference
Use the ordinary US term.
Fast Test
Use “sweater” in US wording or “jumper” in UK wording. If “jumper” means the separate US sleeveless-dress garment, the terms are not interchangeable.
Usage Boundary
Keep both region and garment sense explicit; do not claim every use of “jumper” worldwide means “sweater.”
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- sweater (opens in a new tab)Cambridge University Press · Sweater is the general knitted upper-body garment term and Cambridge gives UK jumper as a counterpart.
- jumper (opens in a new tab)Cambridge University Press · Jumper has a UK knitted-garment sense corresponding to sweater, while American English also uses jumper for a different sleeveless dress garment.