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VISUAL SIGNAL

(noun)
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Definitions

Example Sentences

"The traffic light uses a visual signal to indicate when to stop or go."
"In nature, fireflies emit visual signals to attract mates."
"A flashing red light is a visual signal for danger."
"The lifeguard uses hand gestures as a visual signal to communicate with swimmers."
"Pilots rely on visual signals from air traffic controllers to navigate the runway."
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