🇬🇧🇨🇳 boo - 哞! : English Lesson

Meaning of "boo" ("哞!"), detailed definition, and a short video lesson below.

“Boo” is a loud, quick sound people say to try to surprise or playfully scare someone, like when you jump out from behind a door and shout it for fun.

Watch and listen to this English flashcard to understand the word in more detail, with an easy example sentence.

I shouted “Boo!” at my birthday cake and the candles blew out because even fire got scared of me.

At the haunted house, the actors yelled “Boo!” and my dad yelled “Refund!” while running away.

I tried to scare my dog with a “Boo!” and he just yawned like, “Nice try, tiny human.”

Grandpa hid behind the couch and shouted “Boo!” but scared himself when he saw his own reflection in the TV.

People have been shouting “Boo!” to surprise others for hundreds of years, and in old times audiences even yelled “Boo!” at bad actors instead of clapping.

At the sleepover, the lights dimmed. Lina crept behind the curtain; friends counted then jumped out. "Boo!" "Boo!" "Boo!" "Boo!" they cried, hands waving like bats. Lina screamed, then laughed, and shouted "Boo!" back at them. The room filled with happy shrieks; everyone hugged, the fright turning into warm smiles.

Learn the meaning of boo with our educational learning resources. Download a colorful poster, print engaging games, and enjoy an easy story where the word boo appears in context. 👍

This word is featured in some playlists to help boost your English vocabulary! Check out where “boo” (哞!) makes an appearance and dive into themed playlists that make learning fun. 👍

This word is at the C2 level, which means it represents the highest mastery of English. It’s often used in specialized or highly formal contexts and helps you communicate with precision and subtlety, much like a native speaker.

Expanding your English vocabulary is one of the best ways to improve your pronunciation, spelling, and confidence in English. Watch the video above to memorize the word, understand its meaning, and see example sentences in action. Discover related words to grow your vocabulary naturally. Add words to your playlist for stress-free, effective learning—anytime, anywhere! Watch, learn, repeat.