boo (suomeksi)

buuaus (s: derisive shout)
buuata (v: to shout boos derisively (intransitive) / to shout boos at (transitive))
pöö (i: loud exclamation intended to scare someone / word used ironically in a situation where one might have scared someone, but said someone was not scared)
huu (i: loud exclamation intended to scare someone / word used ironically in a situation where one might have scared someone, but said someone was not scared)
buu (i: exclamation used by a member of an audience)