Speaking softly is a way of communicating that involves using a low volume and gentle tones. The crossword solutions for the term 'speak softly' include 'MUTTER, ' which means to speak in a low, indistinct voice; 'COO, ' which is a soft sound made by a dove or pigeon; 'MURMUR, ' which is a low, continuous sound; 'BREATHE, ' which is to take air into and expel it from the lungs; 'CONFIDE, ' which is to tell someone a secret; 'WHISPER, ' which is to speak in a low, quiet voice; and 'susurrate, ' which is to make a low, rustling sound.