ヒソヒソ Common word LinksSentence search for ヒソヒソSentence search for ひそひそEdit in JMdict Adverb (fukushi), Adverb taking the 'to' particle1. in a whisper; in a low voice; in undertonesOnomatopoeic or mimetic wordOther formsひそひそ Discussions Log in to talk about this word.