8-Letter Words Starting With OP

Here's the list of all the 73 8-Letter Words Starting With OP 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)
optional
1. possible but not necessary; left to personal choice
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operator
1. (mathematics) a symbol or function representing a mathematical operation
2. an agent that operates some apparatus or machine
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opposite
1. a word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each other
2. a relation of direct opposition
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opponent
1. a contestant that you are matched against
2. someone who offers opposition
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optimize
1. make optimal; get the most out of; use best
2. modify to achieve maximum efficiency in storage capacity or time or cost
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8-Letter Words Starting With OP