남의 눈을 피해 몰래 주의를 끌기 위해 내는 소리.
A sibilant sound used to attract someone's attention in a quiet or secretive manner.
예문:
"Psst! Come here for a second; I have a secret to tell you."
"Psst! You dropped your wallet back there."
"I heard a quiet 'Psst' from behind the curtain and realized someone was hiding."