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."

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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

I won’t quote the clips suddenly flooding social media, the apparent result of someone’s late and incompetent oppo research, of his saying things that betray to my ear an obvious animus.

From The Wall Street Journal • Oct. 30, 2025

As NBC’s Sahil Kapur observed, both candidates have “memorized the oppo file on each other.”

From Slate • Jan. 10, 2024

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