signal

How to sign: be a signal for or a symptom of
"These symptoms indicate a serious illness"; "Her behavior points to a severe neurosis"; "The economic indicators signal that the euro is undervalued";

Similiar / Same: bespeak, betoken, indicate, point

Categories: tell

Within this category: bode, mark

signal

How to sign: any communication that encodes a message
"signals from the boat suddenly stopped";

Similiar / Same: signaling, sign

Categories: communication

Within this category: alarm, all clear, animal communication, bugle call, curfew, distress signal, dog-ear, drumbeat, electronic signal, high sign, indicator, input signal, output signal, phone number, radio beacon, radio beam, recording, retreat, starting signal, storm signal, symbol, telegraphic signal, ticktack, time signal, visual signal, whistle