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oppo

American  
[op-oh] / ˈɒp oʊ /

noun

Informal.
  1. Also oppo research opposition research.

    She claims she never ordered oppo on the candidates.

  2. an opponent or opponents; the opposition.

    It's essential to get to know your oppo.

  3. opposite.

    I don’t know why she told you that when I really said just the oppo.

    In this context, "sad" is the oppo of "fortunate."


verb phrase

  1. go oppo to hit the ball uncharacteristically into the opposite field, which for a right-handed batter means hitting the ball into right field and for a left-handed batter means hitting the ball into left field.

    The infield was expecting a shot between first and second, but the left-handed Lomak went oppo and drove one right through the hole near third base.

Etymology

Origin of oppo

First recorded in 1990–95; by shortening

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I trusted Graham and his campaign to have done oppo research and cleared him.”

From The Wall Street Journal • Jun. 6, 2026

But instead we must cite Webb, like Freeman a left-handed hitter who specialized in going oppo.

From Los Angeles Times • Aug. 28, 2023

"Smith's team comes out breathing fire in this oppo brief," tweeted national security attorney Bradley Moss.

From Salon • Jul. 14, 2023

Here's Jarred Kelenic's oppo homer …. pretty swing on the 0-2 pitch.

From Seattle Times • Mar. 1, 2023

He had the presidential race in the bag, it seemed, until oppo research revealed he had a secret daughter.

From Slate

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