Quiet

Quiet[expr, {$s1::t1$, ...}]
evaluates expr, without messages {$s1::t1$, ...} being displayed.
Quiet[expr, All]
evaluates expr, without any messages being displayed.
Quiet[expr, None]
evaluates expr, without all messages being displayed.
Quiet[exproffon]
evaluates expr, with messages off being suppressed, but messages on being displayed.