拡かく声せいTop 40000MeaningsNounSuru verbTransitive verb1. voice amplificationKanji used拡expand horizontally声voicePitch accentかくせいUsed in vocabulary拡かく声せい器きmegaphone; bullhorn; loudhailerNoun拡かく声せい装そう置ちpublic-address system; PA systemNoun拡かく声せい設せつ備びloudspeaker system; PA systemNoun