With IO
5 words · highest scoring is bios at 6 points
5Words
About 4 Letter Words With IO
There are 5 four letter words containing IO in our dictionary. The highest scoring is bios at 6 points, counting tile values before any double or triple squares. 5 of them are common words rather than tournament-only fill — BIOS, IONS, RIOT among them.
The list leads with everyday words so the ones you recognise come first; sort by Scrabble points to put the best play on top, or switch to A-Z to scan alphabetically. Select any word to read its definition and see which dictionaries accept it.
For a wider net, try Words With IO, which drops the length limit entirely.
4 Letter Words With IO at a Glance
Highest Scoring 4 Letter Words With IO
- bios6
- ions4
- lion4
- riot4
- trio4
Common 4 Letter Words With IO
- bios6
- ions4
- lion4
- riot4
- trio4
4 Letter Words With IO Defined
- biosNoun · 6 points
- a biography or short biographical profile of someone
- ionsNoun · 4 points
- an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
- lionNoun · 4 points
- a large tawny-coloured cat that lives in prides, found in Africa and north-western India. The male has a flowing shaggy mane and takes little part in hunting, which is done cooperatively by the females
- riotNoun · 4 points
- a violent disturbance of the peace by a crowd
- trioNoun · 4 points
- a set or group of three people or things
4 Letter Words With IO: Questions
How many four letter words containing IO are there?
There are 5 four letter words containing IO in our dictionary, and 5 of them are common words most players will already know.
What is the highest scoring word among four letter words containing IO?
BIOS is the highest scoring option at 6 points, counting tile values only and before any double or triple squares.
What are some common four letter words containing IO?
BIOS, IONS, RIOT are among the most familiar four letter words containing IO. Select any word in the list to read its definition.
Are these four letter words containing IO valid in Scrabble and Words With Friends?
Every word is drawn from a tournament word list, so most are playable everywhere. Use the dictionary selector to narrow the list to Scrabble US (NWL2023), Scrabble UK (CSW24) or Words With Friends and see only the words that game accepts.