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sharp, loud rebuke; bark; roar
rebuke used in Zen to achieve enlightenment
師匠が弟子に一喝を入れた。
The master gave his disciple a sharp rebuke.
一喝されて目が覚めた気分だ。
Being barked at woke me up.
彼の一喝で場が静まり返った。
His shout silenced the entire room.