| 100% | ENOL | 4 | Compound with a double-bonded carbon atom |
| 78% | ENOL | 4 | Compound with a double bond |
| 75% | ENOL | 4 | Compound with double-bonded carbon atoms |
| 75% | ENOL | 4 | Compound with a doubly linked carbon atom |
| 73% | ENOL | 4 | Compound with a doubly-linked carbon atom |
| 67% | KETONE | 6 | Organic compound with a double-bonded oxygen |
| 61% | ALKENE | 6 | Hydrocarbon with a double bond |
| 60% | ALKENE | 6 | Unsaturated hydrocarbon with a double bond |
| 59% | DIENE | 5 | Compound with two double bonds |
| 56% | ENOL | 4 | Compound with two carbon atoms |
| 56% | PENTANE | 7 | Compound with five carbon atoms |
| 53% | ISOMER | 6 | Compound with the same atoms in a different arrangement |
| 48% | AMINE | 5 | Suffix for a compound with a basic nitrogen atom |
| 47% | ISOMER | 6 | Compound with the same number of atoms in a different arrangement |
| 46% | ENOL | 4 | Compound with a hydroxyl group |
| 46% | ESTER | 5 | Compound with a fruity aroma |
| 46% | ESTER | 5 | Compound with a fruity scent |
| 46% | ESTER | 5 | Compound with a fruity smell |
| 46% | ISOMER | 6 | Compound with a chemical "twin" |
| 45% | ENOL | 4 | Compound with a C=C(OH) group |
| 45% | ENE | 3 | Suffix indicating a double bond |
| 45% | ESS | 3 | Letter with a double twist |
| 45% | ESS | 3 | Letter with a double curve |
| 45% | OBOE | 4 | Instrument with a double reed |
| 45% | TWI | 3 | Prefix with a double meaning? |
| 45% | OBOE | 4 | Woodwind with a double reed |
| 45% | BACKGAMMON | 10 | Game with a doubling cube |
| 44% | ENOL | 4 | Type of hydrocarbon with a hydroxyl group attached to one end of a double bonded carbon pair |
| 44% | TETRAD | 6 | Covalent bonds of a carbon atom, e.g. |
| 44% | ENE | 3 | Chemistry suffix indicating a double bond |