Denshi Jisho — Online Japanese dictionary

ささやく to whisper; to murmur
Common word, Godan verb with ku ending, Intransitive verb 
ささやき whispering; whisper; secret talk; murmur
Noun, Suru verb 
き声 ささやきごえ whisper; murmur
Noun 
蚊のくような声 かのささやくようなこえ faint voice
Expression 

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