4-Letter Words Starting With O

Here's the list of all the 156 4-Letter Words Starting With O in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
only
1. being the only one; single and isolated from others
2. exclusive of anyone or anything else
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over
1. (cricket) the division of play during which six balls are bowled at the batsman by one player from the other team from the same end of the pitch
2. having come or been brought to a conclusion
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open
1. cause to open or to become open
2. start to operate or function or cause to start operating or functioning
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once
1. on one occasion
2. as soon as
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oral
1. of or relating to or affecting or for use in the mouth
2. of or involving the mouth or mouth region or the surface on which the mouth is located
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4-Letter Words Starting With O