Boo is used for expressingshowing a feeling, thought, or opinion to others disapprovala feeling that something is bad or not acceptable, especially in a crowd at a performancean act of entertaining an audience, such as a play or concert, speech, or public event. It can be a noun for the sound itself or a verb meaning to make that sound.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /buː/
Easy pronunciation: BOO (approximate spelling).
Stress: One syllable, so it is fully stressed.
Noun sense: a cry of displeasure or contempt.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Boo Meaning
a sound people make to show they do not like something
Part of speech: noun
Definition: a cry or noise made to express displeasure or contempt
Example: The crowd let out a loud boo after the disappointing performance.
Synonyms for this meaning:
- hiss — Can work as a similar sound of disapproval, though it is not identical in style.
- bronx cheer — A specific humorous term for a rude sound of disapproval.
- razz — Used for a jeering sound or expression of mockery.
- raspberry — Can refer to a rude noise used to show contempt, though it is more informal and playful.
- bird — A slang term for a booing sound, but less common and more regional.
- hoot — Can mean a jeering cry in this sense, though it is broader and often used differently.
- snort — May describe a contemptuous sound, but it is not a precise substitute for boo.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Other Meanings of Boo
Meaning 2
to make booing sounds at someone or something
Part of speech: verb
Definition: show displeasure, as after a performance or speech
Example: Some members of the audience booed the speaker.
Synonyms for this meaning:
- hiss — A close substitute when it means to express disapproval audibly.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Boo Synonyms
Similar Meaning
- hiss
- bronx cheer
- razz
- raspberry
Verb: show displeasure by making booing sounds
- hiss
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Do not confuse boo meaning disapproval with boo used as an affectionate nickname or with the exclamation used to startle someone.
- Do not treat every rude sound as an exact synonym; some are broader or more slangy than boo.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does boo mean?
Boo means a sound of disapproval, or the act of making that sound at someone or something.
Is boo a noun or a verb?
It can be both. As a noun, it means the sound of disapproval. As a verb, it means to make that sound.
What are common synonyms for boo?
Common synonyms include hiss, bronx cheer, and razz, depending on the sense and context.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-03. AI assessment; not a guarantee of accuracy.
