aw

Short definition from Wiktionary

Interjection

1. 1
   Used to express disappointment or dismay.
2. 2
   Used to express mild protest, entreaty, consternation, or disapproval.
3. 3
   Used to express affection.
4. 4
   Used to anticipate telling a person in authority that the listener has done something wrong.

Noun

1. 1
   An instance of aw.
2. 2
   Initialism of autumn/winter; often followed by a year.

Proper noun

1. 1
   A surname.

Symbol

1. 1
   Symbol for attowatt, an SI unit of power equal to 10⁻¹⁸ watts.