ahem

/əˈhɛm/
interjection
  1. A sound made by clearing the throat, used to attract attention, express mild disapproval, or signal that one is about to speak.
    • Ahem, excuse me, but I think you dropped your wallet.
    • The teacher said 'ahem' loudly to quiet the noisy classroom.
    • Ahem, if I may add something to the discussion...
What does "ahem" mean? | whatsthatwordmean | whatsthatwordmean