Pronunciation

/sɪgˈnəl/

Definitions

Noun

1. A signal is a visible, audible, or electronic indication that communicates a particular meaning or information. For example: “The traffic signal changed to green, indicating it was safe to proceed.”
2. In telecommunications or technology, a signal refers to a series of data or instructions transmitted from one place to another. For example: “The satellite transmitted a strong signal to the ground station.”
3. In psychology, a signal may refer to nonverbal cues that convey meaning, like facial expressions or body language. For example: “Her raised eyebrows were a clear signal of surprise.”

Verb

1. To send or convey a signal, usually as a warning or instruction. For example: “The pilot signaled for help when the plane encountered trouble.”
2. To give a sign or indication, often of intention or emotion. For example: “He signaled his approval with a nod.”

Adjective

1. Characteristic of conveying information or communication. For example: “The signal was too weak to be picked up by the receiver.”
2. Serving as a marker or indicator. For example: “The signal flag indicated the direction of the ship’s course.”

Phrases

• “Signal distress” means to send out an urgent call for help.
• “Give a signal to start” is used to indicate the beginning of an event.
• “Visual signals” are forms of communication that can be seen.

Example Sentences

• Noun: “The emergency signal sounded throughout the building, alerting everyone to evacuate.”
• Verb: “He signaled his friend across the room to join him.”
• Adjective: “The wireless router provided a strong signal throughout the house.”

Synonyms

• Signalize
• Indicate
• Flag
• Emblem
• Cue
• Marker