noun
fly
The front opening in trousers, fastened with a zipper or buttons.
These jeans have a button fly instead of a zipper.
Etymology
The opening name developed from a flap of material. The flap covers the fastening and opening at the front of trousers, extending that covering sense.
More examples
- He checks that his fly is closed before the interview.
- The zipper on my fly keeps getting stuck.
- She sews a new button onto the fly of his trousers.
Forms
fly · flies
Similar words
- placket
- A placket is a finished garment opening, not necessarily in pants.
- opening
- An opening is any gap, not specifically a pants closure.