A cautious or timorous speech.

Something communicated in secret or by whispering; a
suggestion or insinuation.

To utter in a low and nonvocal tone; to say under the
breath; hence, to mention privately and confidentially, or in a
whisper.

A low, soft, sibilant voice or utterance, which can be
heard only by those near at hand; voice or utterance that employs only
breath sound without tone, friction against the edges of the vocal
cords and arytenoid cartilages taking the place of the vibration of the
cords that produces tone; sometimes, in a limited sense, the sound
produced by such friction as distinguished from breath sound made by
friction against parts of the mouth. See Voice, n., 2, and Guide to
Pronunciation, // 5, 153, 154.

To address in a whisper, or low voice.

To make a low, sibilant sound or noise.

i. fısıltı, dedikodu. I heard a whisper. (Bir fısıltı duydum.)

f. fısıldamak, gizli konuşmak. What are you two girls whispering about? (Siz iki kız ne hakkında fısıldaşıyorsunuz?)

To speak softly, or under the breath, so as to be heard
only by one near at hand; to utter words without sonant breath; to talk
without that vibration in the larynx which gives sonorous, or vocal,
sound. See Whisper, n.

To prompt secretly or cautiously; to inform privately.