Words Starting With O
9,081 words starting with "O" for Scrabble, Words With Friends & word gamesfor Scrabblefor Words With Friends
Words Starting With O help you find the perfect word for word games, crossword puzzles, and vocabulary building.
Three heavily used prefix families start with O: OUT- (OUTSIDE, OUTRUN), OVER- (OVERCOME, OVERFLOW), and OFF- (OFFSET, OFFEND). These prefixes are transparent in meaning, making O-starting words easy to understand even when they're unfamiliar. Our opening move guide covers how to use common vowel starters effectively on your first turn.
Sort results by point value to find the highest-scoring optionsalphabetical order for quick referencereverse order for a different perspective, or filter by ending letter and word length. If you have a rack full of tiles and aren't sure what to play, the Jumble Solver shows every valid word from your letters.
Look for hook plays where adding a letter to an existing word on the board scores for both words. Landing a word across a double or triple word square in ScrabbleScrabbleWords With Friends can easily double or triple your base score.
All words are verified against Scrabble (TWL and SOWPODS) and Words With Friends dictionariesthe tournament-standard Scrabble dictionary (TWL/SOWPODS)the Words With Friends dictionary. Use the dictionary filter above the list to narrow results to your preferred game.
15 Letter Words
20 of 261 words14 Letter Words
20 of 382 words13 Letter Words
20 of 532 words12 Letter Words
20 of 793 words11 Letter Words
20 of 1,098 words10 Letter Words
20 of 1,351 words9 Letter Words
20 of 1,445 words8 Letter Words
20 of 1,334 words7 Letter Words
20 of 865 words6 Letter Words
20 of 503 words5 Letter Words
20 of 263 words4 Letter Words
20 of 165 words3 Letter Words
20 of 72 words2 Letter Words
17 wordsHighest Scoring Words Starting With O in Scrabble in Words With Friends
The 10 highest-scoring words starting with o, led by OXYPHENBUTAZONE (41 pts in Scrabble, 44 pts in Words With Friends41 pts in Scrabble44 pts in Words With Friends). High-value words like these can dominate premium squares and swing close games in your favor.
| # | Word | Scrabble | WWF |
|---|---|---|---|
| 1 | OXYPHENBUTAZONE | 41 pts | 44 pts |
| 2 | OBJECTIVIZATION | 38 pts | 44 pts |
| 3 | OVEREMPHASIZING | 35 pts | 39 pts |
| 4 | OOPHORECTOMIZED | 34 pts | 36 pts |
| 5 | OVERHOMOGENIZED | 34 pts | 37 pts |
| 6 | OOPHORECTOMIZES | 33 pts | 35 pts |
| 7 | OVERHOMOGENIZES | 33 pts | 36 pts |
| 8 | OXYHAEMOGLOBINS | 33 pts | 36 pts |
| 9 | OPHTHALMOPHOBIA | 32 pts | 34 pts |
| 10 | OVERADVERTIZING | 32 pts | 36 pts |
OUT-, OVER-, OFF-: O's Triple Prefix Punch
O is unusual among starting letters because its three main prefix families are transparent in meaning. OUT- means "exceeding" or "external": OUTSIDE, OUTCOME, OUTPUT, OUTRUN, OUTWEIGH, OUTPERFORM. OVER- means "too much" or "above": OVERCOME, OVERFLOW, OVERLOOK, OVERNIGHT, OVERREACT. OFF- means "away" or "from": OFFEND, OFFICER, OFFSET, OFFSHORE, OFFSPRING. Because these prefixes are so intuitive, you can often guess the meaning of an unfamiliar O word just by recognizing the prefix pattern.
O is worth just 1 point with 8 tiles in the bag. Like other common vowels, O's value comes from the words it enables rather than its face score. In Scrabble and Words With FriendsScrabbleWords With Friends, O produces excellent two-letter words (OF, ON, OR, OX, OW) that are vital for parallel plays. When building O-starting words, look for opportunities where the O connects with tiles already on the board to create crossing two-letter words for bonus points.
The Wordle Solver filters by letter position, which helps narrow O-starting Wordle answers. Words like OTHER, OCEAN, OLIVE, ORDER, and OFFER are all possible answers. Our two-letter word cheat sheet lists all valid O combinations for maximum parallel-play scoring.
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Words by Ending Letter
Browse words organized by their last letter. Useful for rhyming, suffix hooks, and crossword solving.
Words by Contained Letter
Find words that include a specific letter anywhere in the word. Helpful for Scrabble high-value tiles and Wordle yellow clues.
Words by Vowel
Browse words that contain A, E, I, O, or U. Useful for vowel-dump plays and testing vowels in daily puzzles.
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Frequently Asked Questions
How many words start with O in Scrabble and Words With Friends?
There are 9,081 valid words starting with O in Scrabble (TWL/SOWPODS) and Words With Friends dictionaries. The letter O is very common as a starting letter in English.
How many points is O worth in Scrabble and Words With Friends?
O is worth 1 point in Scrabble and Words With Friends. There are 8 O tiles in a standard Scrabble set.
What are the highest-scoring words starting with O?
The top-scoring word starting with O is OXYPHENBUTAZONE at 41 points in Scrabble and Words With Friends. Other strong options include OXYGEN, OXIDIZE, ONYX.
What short words start with O that are useful in word games?
Short words (2-3 letters) starting with O are valuable for tight board positions and parallel plays. Browse this list sorted by points to find the best short options. Filter by word length above the list to see only 2 or 3-letter words starting with O.
Can I filter these words by length or other letters?
Yes! Use the filters above the list to narrow results by word length, ending letter, or contained letters. For example, you can find all 5-letter words starting with O for Wordle, or 7-letter words starting with O for potential Scrabble bingos.
Are all words starting with O valid in every word game?
No. Different dictionaries accept different words. Scrabble US (TWL) and Scrabble International (SOWPODS) have different word lists, and Words With Friends uses its own dictionary. Use the dictionary filter to check which words starting with O are valid in your specific game.