1 word comes out when you unscramble OO, starting with OO itself: 2 in Scrabble, 2 in Words With Friends. 2 letters, all of them vowels.
O1O1
Counting the words from OO by length: 1 with 2 letters.
Keep every letter of OO but one, change that one, and you get:
More 2-letter words: starting with O · ending in O · all 2-letter words
In Scrabble, yes: OO is playable in Scrabble UK. It is not in the list Words With Friends is built on.
| Game | Scrabble US | Scrabble UK | Words With Friends* |
|---|---|---|---|
| OO itself | No | Yes | No |
| Answers accepted (of 1) | 0 | 1 | 0 |
* Based on the list Words With Friends started from; the live game may differ.
Not in Scrabble US and Words With Friends*: OO.
These 12 words take every letter of OO plus a single extra one.