Signal

Definition

The word "signal" refers to an action, sound, or visual cue used to convey information (noun), or the act of communicating information through such means (verb).

Parts of Speech

• Noun
• Verb
• Adjective

Pronunciation

American English

• IPA Pronunciation: /ˈsɪɡ.nəl/
• Respelling: SIG-nuhl

British English

• IPA Pronunciation: /ˈsɪɡ.nəl/
• Respelling: SIG-nuhl

Etymology

The word "signal" originates from the Latin word "signum," meaning "sign, mark, or token." It entered Middle English through Old French "signal," maintaining its meaning related to signs and indications.

Derivatives

• Signaling (verb/noun)
• Signaler (noun)
• Significant (adjective)
• Signage (noun)
• Signpost (noun/verb)

Synonyms

• Indicator
• Alert
• Cue

Antonyms

• Noise
• Confusion
• Obscurity

Usage

The term "signal" is widely used in contexts such as communication, transportation, and technology. Examples: "The train stopped at the red signal," and "He signaled for help by waving his hand."

Related Terms

• Transmission: The act of conveying information or signals.
• Sign: A mark, gesture, or object indicating information.
• Beacon: A guiding or warning signal, often in the form of light.

Detailed Definitions

Noun

• An action or device conveying information: Refers to something used to communicate or indicate.
  • Example: "The traffic signal turned green."
• A gesture or sign to communicate a message: Indicates an intentional motion or action meant to convey information.
  • Example: "She gave a signal to start the presentation."

Verb

• To communicate using a signal: Refers to the act of sending information through gestures, sounds, or devices.
  • Example: "He signaled the driver to stop."

Adjective

• Notable or significant: Refers to something important or outstanding.
  • Example: "It was a signal achievement in his career."