Used to tell someone to be quiet or to silence them, similar to English 'shh'.
Shh, be quiet.
Used to drive away animals or pests, like shooing a cat or bird.
Shoo, go away!
Ateji kanji form using the simplified variant of 叱; very rare.
A reduplicated interjection of imitative origin, similar to English 'shh' or 'shoo'. The exact derivation is uncertain.