Sig·nal, v. t. [imp. & p. p. Signaled ∨ Signalled; p. pr. & vb. n. Signaling or Signalling.]
1. To communicate by signals; as, to signal orders.
2. To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.
n : any communication that encodes a message; "signals from the
boat suddenly stopped" [syn: signal, sign]