1. A symbol '0' that represents nothing. (A symbol representing nothing however is surely something
2. A symbol used in the 1337 or eleet alphabet to replace 'o' or 'O' for no paticular reason whatsoever. Makes them believe they have some devine power over people who speak english, or other understandable langauges.
1) 0=Nothing Nothing=Something
2) >1337person< Shut up y0u n00b
>Other person< Or why dont you go fuck yourself