IO is valid in Collins, not in North America — 2 points
It depends on the list you play by. IO is in Collins, used in the UK and most of the world, but it is not in the North American lists — so in a US or Canadian game an opponent can challenge it off the board. Worth 2 points. Words with Friends does accept it.
Which word lists accept IO?
| Official Scrabble Players DictionaryUSA, Canada, Thailand | Not listed |
|---|---|
| Official Tournament and Club Word ListUSA, Canada, Thailand | Not listed |
| Collins Scrabble WordsEnglish in most countries | Valid |
| Words with FriendsZynga word list | Valid |
Word power: 41 / 100
Our own measure of how useful IO is to know. It scores 2 from 2 tiles, takes 4 hooks, and its letters make up 8.5% of the bag. How this number is calculated
Hooks for IO
Checked against OSPD, TWL, CSW, WWF. Takes an S, so it hooks onto plurals easily.
How IO scores
Face value of the 2 tiles in IO, before any board multiplier.
Tiles you need
| Letter | Needed | In the bag |
|---|---|---|
| i | 1 | 9 |
| o | 1 | 8 |
Drawing exactly these 2 tiles as an opening rack: 1 in 69.
What stands out about IO
- IO is one of just 133 words of 2 letters in the four lists we check — a short list worth knowing by heart.
Counted from the four word lists we hold, not taken from anywhere else. How we calculate things
What does IO mean in Scrabble?
noun
A large North American moth with a bright eyespot on each hind wing.
How IO is used
- An io settled on the porch screen and stayed all night.
- The io shows its eyespots only when disturbed.
Written for this site: 1 meaning of IO and 2 example sentences, not copied from a published dictionary.
Anagrams of IO
The 2 tiles of IO in a different order — 1 found.
Words starting with IO
Showing 24 of 118 words that begin with IO.
Words ending in IO
Showing 24 of 211 words that end in IO. Useful as a back hook: play IO onto a word already on the board.
Words with IO inside
Showing 24 of 15354 words that contain IO somewhere in the middle. Words that start with IO are listed separately above, so nothing is repeated.
Common questions about IO
- Is IO valid in Words with Friends?
- Yes. Words with Friends accepts IO, where it scores 2 points. That game keeps its own list, separate from the Scrabble dictionaries.
- How many points is IO worth?
- IO is worth 2 points in Scrabble and 2 points in Words with Friends.
- What does IO mean?
- A large North American moth with a bright eyespot on each hind wing.
- What letters can be added to IO?
- IO takes 4 hooks: 2 in front and 2 at the end.
Every word you can build from the 2 letters of IO:
Open IO in the Word Finder