whispering
n. C / U B1 Intermediate US //ˈhwɪspɝɪŋ// UK //wˈɪspəɹɪŋ// whis·per·ing
n. the sound of people talking very quietly so others cannot hear them.
n. the act of speaking in a soft, hushed tone without vocal cord vibration; also refers to the low, rustling sound produced by such speech.
I heard some whispering in the back of the classroom.
The constant whispering during the movie was very distracting for the rest of the audience.
A faint whispering of leaves against the windowpane added to the eerie atmosphere of the abandoned house as the storm began to gather strength.
Usage
Uncountable when referring to the general sound or activity; countable when referring to specific instances or rumors.