visual signal

Thân thiện

A traffic light uses a visual signal to tell drivers when to stop or go.

Definition

Noun: A visible sign, gesture, or display used to convey information, instructions, or a warning. It is a form of communication that relies on sight.

Usage

A "visual signal" is used to transmit a message that can be seen. It is a broad category that includes many specific types of signs. - The referee raised a yellow card as a visual signal for a foul. - Traffic lights are a crucial visual signal for controlling vehicles at intersections. - The sailor used flags to send a visual signal to the other ship.

Advanced Usage

• In Technology: Refers to any graphical or lighted indicator on a device.
  • The blinking red light on the hard drive is a visual signal of activity.
• In Animal Behavior: Used to describe displays used for communication among animals.
  • The peacock's tail feathers are a visual signal used in mating rituals.

Variants and Related Words

• Signal (n): A broader term for any sign, gesture, or action that conveys information, which can be visual, auditory, or other.
• Cue (n): A signal, often visual, for an action to begin.
• Gesture (n): A movement of part of the body, especially a hand or the head, to express an idea or meaning—a type of visual signal.

Synonyms

• Sign
• Indication
• Marker
• Beacon

Related Phrases and Idioms

• A signal of intent: An action that visually demonstrates what one plans to do.
  • The company's new investment was a clear visual signal of intent to expand.
• Give the signal: To initiate an action by providing a visual cue.
  • The director will give the visual signal to start the performance.

Học thuật

Noun

1. a signal that involves visual communication