しーっ

interjection

shh!; shush!; hush!

Used to tell someone to be quiet or to make less noise.

• しーっ、静しずかに。

  Shh, be quiet.

interjection

shoo!; scram!

Used to drive away animals or people, similar to 'shoo' or 'scram'.

• しーっ、あっち行いけ！

  Shoo, go away!