As a verb:
* "Hush, little baby, don't say a word." (To silence someone)
* "The librarian shushed the noisy students." (To quieten someone)
* "The doctor hushed the room before delivering the news." (To create silence)
As an adjective:
* "The room was filled with a hush as the winner was announced." (A state of silence)
* "The forest was filled with a hush, broken only by the chirping of birds." (A quiet and peaceful atmosphere)
* "She held her breath, her movements hush as she crept through the house." (Quiet and stealthy)
As an interjection:
* "Hush! I think I hear something." (To call for silence)
* "Hush, darling. I'll be back soon." (To reassure someone)
The specific meaning of "hush" will depend on the context of the sentence.