| 100% | ACUTE | 5 | In mathematics, an angle of less than 90º |
| 90% | ACUTE | 5 | In mathematics, an angle of less than 90 degrees |
| 67% | ACUTE | 5 | Like an angle of less than 90° |
| 49% | ACUTE | 5 | Less than 90°, as an angle |
| 49% | ACUTE | 5 | Less than right, as an angle |
| 49% | ACUTE | 5 | An angle less than 90 degrees |
| 49% | ACUTE | 5 | Less than 90, as an angle |
| 49% | ACUTE | 5 | Less than 90 degrees, as an angle |
| 48% | ACUTE | 5 | Like an angle measuring less than 90 degrees |
| 48% | ACUTE | 5 | Like an angle less than 90° |
| 47% | ACUTE | 5 | Like an angle less than 90 degrees |
| 47% | OBTUSE | 6 | Angle of more than 90 but less than 180 degrees |
| 47% | ACUTE | 5 | Like an angle that's less than 90° |
| 46% | ACUTE | 5 | Like an angle that's less than ninety degrees |
| 43% | MONACO | 6 | Sovereign state with an area of less than a square mile |
| 42% | AIL | 3 | Be in less than the peak of health |
| 42% | HEMOGLOBIN | 10 | Most people have less than 20 grams of this in every 100 ml. of blood |
| 41% | SUBHEAD | 7 | Part of an article in slightly larger text than the body, perhaps |
| 39% | UNDER | 5 | Less than, short of |
| 39% | FACET | 5 | Angle of an issue |
| 39% | OVERDRAWN | 9 | A bank balance of less than zero |
| 39% | LIRA | 4 | Turkey purchase of less than a dollar |
| 39% | ACUTE | 5 | Less than right, angle-wise |
| 39% | ACUTE | 5 | Less than 90 degrees angle |
| 38% | RENO | 4 | "Make the biggest little mistake of your life in ___" (tourism slogan in an Arrested Development gag) |
| 38% | ACUTE | 5 | Less than 90°, in geometry |
| 38% | SOME | 4 | Less than 54-Across of |
| 38% | ACID | 4 | Having a pH value of less than 7 |
| 38% | ACIDS | 5 | They have pH's of less than 7 |
| 38% | INEZ | 4 | Kentucky town of less than one sq. mile |