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Definitions for Boo

[1] (used to express contempt or disapprobation or to startle or frighten).
[2] an exclamation of contempt or disapproval: a loud boo from the bleachers.
[3] to cry boo in derision.
[4] to show disapproval of by booing.
[5] Slang . marijuana.
[6] one's boyfriend or girlfriend.
[7] an exclamation uttered to startle or surprise someone, esp a child
[8] a shout uttered to express disgust, dissatisfaction, or contempt, esp at a theatrical production, political meeting, etc
[9] would not say boo to a goose is extremely timid or diffident
[10] to shout "boo" at (someone or something), esp as an expression of disgust, dissatisfaction, or disapproval to boo the actors

Words related to Boo

heckle, jeer, holler, hoot, hiss, raspberry, catcall

Words nearby Boo

bony palate, bonynge, bonytail, bonze, bonzer, boo, boo-boo, boo-hurrah theory, boo-word, boob, boob happy

Origin of Boo

31985–90; possibly an alteration of French beau boyfriend, admirer

Synonyms for Boo

heckle, hiss, holler, hoot, jeer, catcall, raspberry