Pronunciation: /ˈsɪɡnəl/
noun a gesture, action, or sound that is used to convey information or instructions
A1 The traffic light changed from red to green, signaling us to go.
A2 He used hand signals to communicate with his deaf friend.
B1 The sudden drop in stock prices was seen as a signal of an upcoming recession.
B2 The radio tower sends out signals to communicate with airplanes in the area.
C1 The diplomat's actions were seen as a signal of a potential breakthrough in negotiations.
C2 The subtle signals in her body language indicated that she was not interested in continuing the conversation.
verb to send a signal
A1 I signal to my friend across the room to come over.
A2 The traffic light signaled for us to stop.
B1 The referee signaled for a penalty kick.
B2 The captain signaled for the crew to prepare for departure.
C1 The diplomat signaled for a ceasefire in the conflict.
C2 The conductor signaled for the orchestra to begin playing.
formal The traffic light turned red, signaling us to stop.
informal I waved my hand as a signal for them to come over.
slang I gave him the signal to start the race.
figurative Her sudden silence was a signal that something was wrong.
signaled
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