| Answer | Crossword Clue |
|---|---|
| BOOST | Opposite of a knock. |
| BOOST | Opposite of knock. |
| BOOST | Opposite of "knock." |
| KNEED | Knock-... (opposite of bow-legged) |
| RATATAT | Sound of a knock |
| DENT | Result of a knock. |
| OUST | Knock out of a tournament |
| WHOS | Start of a "Knock, knock" response |
| PUN | Essence of a knock-knock joke |
| WHOS | Beginning of a knock-knock answer |
| WHOS | "... there?" (part of a knock-knock joke) |
| WHO | Word preceding the punch line of a knock-knock joke |
