| Answer | Crossword Clue |
|---|---|
| staple | to fasten with a U-shaped metal clip |
| staples | STAPLE, to fasten with a U-shaped metal clip |
| stapled | STAPLE, to fasten with a U-shaped metal clip |
| stapling | the act of fastening with a U-shaped metal clip |
| staples | A small U-shaped metal bar with pointed ends for driving into wood to hold attachments such as electric wires, battens, or sheets of cloth in place |
| trombone | brass wind instrument with a U-shaped metal tube and a slide |
