boo
boo
bu
boo
/bˈuː/

Definition & Meaning of "boo"in English

01

used to vocalize disapproval, dissatisfaction, or disdain, particularly in response to something disliked or unwelcome

boo definition and meaning
Disapproving
Examples
The singer forgot the lyrics. Boo!
to boo
01

show displeasure, as after a performance or speech

Grammatical Information
Composition
Simple
action verb
regular
present tense
boo
3rd person singular
boos
present participle
booing
past simple
booed
past participle
booed
Boo
01

a cry or noise made to express displeasure or contempt

Grammatical Information
animacy status
abstract
Composition
Simple
countable
plural form
boos
02

a close friend, romantic partner, or significant other

Slang

What does "boo" mean in slang?

The term "boo" is an affectionate word for a romantic partner or very close person. The structure is a shortened, playful form of "beau," historically meaning a boyfriend or admirer, later simplified in modern slang. It is commonly used in texting and speech to express intimacy or emotional closeness. Depending on context, it can refer to a boyfriend, girlfriend, or someone you are romantically involved with.

Examples
She 's been my boo for three years.
LanGeek
Download LanGeek app
langeek application

Download Mobile App

App Store