Yes. OI is a valid word.
OI is valid in the North American word list used for the Scrabble board game and other crossword tile games.
OI is in the NASPA Word List 2023 (NWL2023), the North American list that Tileside uses for challenges and the one used in club and tournament play.
About OI
OI is a cry of dismay or pain, another spelling of OY. It clears an O and an I together, and both are vowels players often have too many of.
Settle the next one at the table: score your game free in Tileside →
OI scores 2 points
Before any bonus squares: O 1 + I 1 = 2. On a double-word square that's 4, on a triple-word 6, and every letter bonus under one of these tiles is applied first.
Example: OI as the first play
Later in the game, put the O on a 3L square and OI is worth 4 before any word bonus.
Hooks: one tile makes a new word
Longer words from OI
Words that start with OI:
- OIKS
- OILSform of OIL: a slippery or viscous liquid or liquefiable substance not miscible with water
- OILYcontaining an unusual amount of grease or oil
- OINKthe short low gruff noise of the kind made by hogs
- OIDIAform of OIDIUM: a type of fungus
- OILEDform of OIL: a slippery or viscous liquid or liquefiable substance not miscible with water
- OILERa worker who oils engines or machinery
- OINKSform of OINK: the short low gruff noise of the kind made by hogs
Change one tile
Swap any one letter of OI and these are still words:
Same letters, other words
These use exactly the letters of OI:
- IOa cry of joy or triumph
Memory tip
OI is a cry of dismay, another way to say oy. It clears an O and an I together, handy on a vowel-heavy rack.
On these lists
Other two-letter words starting with O
Check words at the table, free
Tileside keeps score, checks words like this one during a challenge, tracks the tiles left in the bag and times turns. It runs in your phone's browser with no account and works offline.
Tileside checks words against the North American list, the NASPA Word List 2023. Your group's chosen dictionary always wins. Playing the international (Collins) list? Turn on its 20 extra two-letter words in Setup.
Word list: NASPA Word List 2023, used under license. NASPA Word List 2023 Edition © NASPA 2023. The copy included in this app is licensed for personal use. You may not use it for any commercial purposes.
Works with the Scrabble board game, played at the table. Tileside is an independent product, not affiliated with or endorsed by the makers of Scrabble.