| Word | Scrabble | WWF |
|---|---|---|
| IFF (3) TWLCollinsWWF conjunction: If and only if; used to show that the truth values of two statements are the same. [def] | 9 I (1) + F (4) + F (4) | 9 |
| IFS (3) TWLCollinsWWF noun: An uncertainty, possibility, condition, doubt etc. [def] | 6 I (1) + F (4) + S (1) | 6 |
| IF (2) TWLCollinsWWF noun: An uncertainty, possibility, condition, doubt etc. [def] | 5 I (1) + F (4) | 5 |
| SIS (3) TWLCollinsWWF [def] | 3 S (1) + I (1) + S (1) | 3 |
| IS (2) TWLCollinsWWF [def] | 2 I (1) + S (1) | 2 |
| SI (2) TWLCollinsWWF noun: A syllable used in solfège to represent the seventh note of a major scale. [def] | 2 S (1) + I (1) | 2 |
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