go in

verb

went in; gone in; going in; goes in

intransitive verb

1

: to make an approach (as in attacking)

2

a

: to take part in a game or contest

b

: to call the opening bet in poker : stay

3

of a celestial body : to become obscured by a cloud

It got cooler once the sun went in.

4

: to form a union or alliance : join

—often used with with

asked us to go in with them

Phrases

go in for

1

: to give support to : advocate

2

: to have or show an interest in or a liking for

3

: to engage in : take part in

go in on

informal

: to help pay for something

We all went in on the gift.

Synonyms of go in

• assault
• attack
• raid
• turn (on)
• storm
• jump (on)
• set on
• strike
• set at
• set upon
• descend (on or upon)
• fly at
• rob

Examples of go in in a Sentence

law enforcement officials decided to wait before going in on the barricaded gunman

Recent Examples on the Web

The scene is filmed with the camera and Grande going in and out of parallel mirrors in her apartment — a setup that Brooks found at home by playing around with a shaving mirror — and eventually facing her own reflection in her bubble. —Caitlin Huston, HollywoodReporter, 24 Nov. 2025

Mary janes themselves have been a staple for decades now, going in and out of popularity. —Tara Larson, Footwear News, 24 Nov. 2025

Barbara and Jeffrey Kepner told ABC News that investigators told the family that the stepbrother was the only person seen on security camera footage going in and out of the room. —David Goodhue, Miami Herald, 24 Nov. 2025

The Anteaters had a chance to close out the game in regulation but Dixon’s baseline jumper at the buzzer went in and out, sending the game into overtime. —Janis Carr, Oc Register, 23 Nov. 2025

Word History

First Known Use

1812, in the meaning defined at sense 1

Rhymes for go in

• coan
• kohen
• rohan
• rowan
• rowen
• bryozoan
• metazoan
• protozoan
• minoan
• samoan