Plural of Trousers
“Trousers” is grammatically plural in the standard clothing sense, even when it refers to one garment. English normally counts individual garments with “a pair of trousers” and multiple garments with “pairs of trousers.”
“Trousers” is already a plural-form noun. For one garment, say “a pair of trousers”; for more than one, say “two pairs of trousers,” “three pairs,” and so on.
Key details
Further guidance
Core difference
Do not create a new plural by adding another ending to “trousers.” The word itself takes plural agreement in its ordinary clothing use.
Fast Test
For one garment, use “a pair of trousers.” For several garments, pluralize “pair”: “two pairs of trousers.”
Usage Boundary
This guidance concerns the standard clothing noun and its number behavior, not unrelated historical or specialist uses.
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.
- trousers — Cambridge Essential British English Dictionary (opens in a new tab)Cambridge Dictionary · Plural-noun treatment of trousers and standard pair of trousers construction