op

¹ American  

[op] / ɒp /

noun

1. op art.

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OP ² American  

Or O.P.

1. observation post.

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op- ³ American  

1. variant of ob- (by assimilation) before p:

   oppose.

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op. ⁴ American  

abbreviation

1. opera.

2. operation.

3. opposite.

4. opus.

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Op. ⁵ American  

abbreviation

1. opus.

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o.p. ⁶ American  

abbreviation

1. out of print.

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O.P. ⁷ American  

abbreviation

1. Order of Preachers (Dominican).

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O.P. ⁸ American  

abbreviation

1. observation post.

2. British Theater. opposite prompt.

3. out of print.

4. overproof.

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op. ¹ British  

abbreviation

1. operation

2. opus

3. operator

4. operational

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OP ² British  

abbreviation

1. military observation post

2. Ordo Praedicatorum (the Dominicans)

3. organophosphate

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o.p. ³ British  

abbreviation

1. out of print

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Usage

What else does OP mean? On internet forums and message boards, OP is short for original poster, or the person who started the thread that users comment on.In video gaming, anime, and sports, OP is a shorthand for overpowered, describing an indomitable character or player.Contet warning: This article features information about a homophobic slur that is highly offensive.How do you pronounce OP?[ oh-pee ]

Etymology

Origin of O.P.

From Latin Ōrdō Praedicātōrum

Example Sentences

He was skeptical, the congressman said, that it would be nothing more than a "photo op."

From Barron's • Feb. 22, 2026

"Do I have someone write an op ed?"

From BBC • Feb. 4, 2026

Influencers looking for a perfect photo op competed against tiger moms hoping that a glimpse of the robot-powered assembly lines might inspire their kids to pursue tech careers.

From The Wall Street Journal • Jan. 4, 2026

In video of the interaction, published Monday by TMZ, the musician poses with a supposed fan for a photo op.

From Los Angeles Times • Dec. 9, 2025

For the good of the People in general, it was better he remain outside the op zone.

From "Artemis Fowl" by Eoin Colfer