| 100% | OFIT | 4 | "You don't know the half __!" |
| 81% | LAS | 3 | Things sung when you don't know the words |
| 79% | LALA | 4 | What to sing when you don't know the words |
| 79% | MYSTERY | 7 | Kind of tour where you don't know the destination |
| 79% | HUM | 3 | What to do when you don't know the words |
| 77% | STRANGER | 8 | A person you don't know; __ Things the TV series |
| 76% | HUM | 3 | What to do when you don't know the words to a song |
| 75% | HALF | 4 | "You don't know the ___ of it!" |
| 75% | BYNOW | 5 | "If You Don't Know Me ___" (Harold Melvin & the Blue Notes song) |
| 74% | BYNOW | 5 | "If You Don't Know Me ___" (Harold Melvin & the Blue Notes song) (2 wds.) |
| 71% | HUM | 3 | What you can do if you don't know the words |
| 71% | LALA | 4 | What you might sing if you don't know the words |
| 66% | STRANGERS | 9 | People you don't know |
| 66% | STRANGER | 8 | Someone you don't know |
| 66% | STRANGER | 8 | Person you don't know |
| 66% | RANDO | 5 | Person you don't know |
| 64% | STRANGER | 8 | Person you don't know at all |
| 64% | RANDO | 5 | Someone you don't know at all |
| 64% | LAS | 3 | "I don't know the words" words |
| 64% | LALALA | 6 | "I don't know the lyrics" syllables |
| 63% | DAB | 3 | You don't just do the ___, you feel the ___ |
| 63% | ORELSE | 6 | "You don't even want to know the alternative!" |
| 63% | PASS | 4 | "I don't know the answer, next question" |
| 62% | ROW | 3 | You don't want to be in the last one |
| 62% | LALALA | 6 | [I don't know the words to this part] |
| 62% | RISK | 4 | Trusting someone you don't know, e.g. |
| 62% | WEED | 4 | Something you don't want in the bed |
| 61% | RED | 3 | "If You Don't Know Me by Now" band Simply ___ |
| 61% | SIMPLYRED | 9 | "If You Don't Know Me By Now" soul group |
| 61% | LISTEN | 6 | You don't have to face the music to do it |