whispering (EN)
noun, adjective

This word can also be a form of:
whisper (verb)

noun “whispering”

sg. whispering, pl. whisperings or uncountable
  1. words spoken very softly or quietly
    She leaned in close, her whispering barely audible over the sound of the wind.
  2. a piece of secret or private information that people talk about but may not be true
    Whisperings about the new teacher's mysterious past quickly spread through the school.

adjective “whispering”

whispering
  1. sound that is low, ongoing, and not clear
    The whispering wind gently rustled the leaves in the quiet forest.