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• op
  op

  noun

  op art.
• OP
  OP

  observation post.
• op-
  op-

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

  abbreviation

  opera.
• Op.
  Op.

  abbreviation

  opus.
• o.p.
  o.p.

  abbreviation

  out of print.
• O.P.
  O.P.

  abbreviation

  Order of Preachers (Dominican).

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

Away from Formula One paddocks and movie sets, Verhoeven's story began amid a turbulent childhood in Bergen op Zoom, near the Belgian border.

From BBC • May 22, 2026

A few plane orders might make for a great photo op, but the real conversation is just getting started.

From Barron's • May 14, 2026

Unsettled, they tried to rush out after the event but were corralled to flank Gorka in a photo op.

From Salon • Apr. 22, 2026

“It’s an op dude—I do this for a living—the pieces that are dropping are deeply researched. This is sophisticated op.”

From The Wall Street Journal • Feb. 6, 2026

A brightly painted wooden panel stood next to the cauldron, awaiting the next photo op.

From "Aru Shah and the End of Time" by Roshani Chokshi