Boo

"Boo" in Japanese

ばあ

baa

(loud exclamation intended to scare someone)

ブー

bū

(exclamation used by a member of an audience)

ブー

bū

(derisive shout)

ブーイング

būingu

(derisive shout)

ブーイングする

būingu suru

(to shout boos derisively (intransitive))

野次る

yajiru

(to shout boos derisively (intransitive))

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.