Anonymity

[Sarah]

Involvement in some way where you can not be personally identified.

[Britney]

Not knowing ones name and\or location. Used professionally by spies, thieves and snipers, but widely abused by Internet users.

[Rihanna]

the state of having ones identity concealed

[Dave Paprocki]

being in a state of or having an unknown idenity; being anonymous.

[Hina Muqadas]

THE thing to hide in.
What enables everyone to blame everyone else for what no-one wants to be [responsible] for.
Not being named or being able to be traced from a statement or action you comitted.

[Sarah]

1)The act of being so [shibby], you no longer need to be recognized for what you say or write. Youre just so cool.
2)The act of having no self-esteem OR everybody hates you. So to get ppl to listen to you, you have to make it so that they dont know its you.