14-Letter Words Starting With O

Here's the list of all the 349 14-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)
organizational
1. of or relating to an organization
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organisational
1. of or relating to an organization
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osteoarthritis
1. chronic breakdown of cartilage in the joints; the most common form of arthritis occurring usually after middle age
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overwhelmingly
1. incapable of being resisted
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otolaryngology
1. the medical specialty that deals with diseases of the ear, nose and throat
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14-Letter Words Starting With O