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4-Letter Words Starting With O

157 4-letter words starting with O.

A locked-in first letter is common in word games — a confirmed opening tile in a guessing game, or a O you're building off on the board. Every 4-letter word here begins with O and appears in our general dictionary; official acceptance varies by game. 70 of them (45%) are everyday words most players will recognize — those are listed first, with the rest of the dictionary alphabetically behind them. After the opening O, the letter you'll see most is S, in 38% of them. Under classic English tile values, OOZY scores the most at 16 points.