10-Letter Nouns Starting With O

Here's the list of all the 652 10-Letter Nouns 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 Nouns (with Definitions and Examples)
operations
1. financial transactions at a brokerage; having to do with the execution of trades and keeping customer records
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occupation
1. the principal activity in your life that you do to earn money
2. the control of a country by military forces of a foreign power
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obligation
1. the social force that binds you to the courses of action demanded by that force
2. the state of being obligated to do or pay something
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opposition
1. the action of opposing something that you disapprove or disagree with
2. the relation between opposed entities
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occurrence
1. an event that happens
2. an instance of something occurring
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10-Letter Nouns Starting With O