Definition

1. Noun:
   • A device that signals or announces something: An annunciator is an indicator, typically with visual or audible signals, that announces which specific circuit, device, or condition has become active, often used in control panels or switchboards.
   • A person who announces: (Less common) An annunciator can refer to a person who makes announcements or proclamations.

Usage Examples

• Noun:
  • The fire alarm annunciator panel showed the exact location of the triggered sensor.
  • In the old telephone exchange, the operator watched the annunciator to see which line was calling.
  • He served as the annunciator for the royal decrees.

Advanced Usage

• "Annunciator panel": A centralized panel containing multiple annunciators to monitor various systems (e.g., fire, security, machinery).
  • The engineer checked the annunciator panel for any fault warnings.
• "Visual annunciator": An annunciator that uses lights or displays to indicate status.
  • A red flashing light on the visual annunciator signaled a pressure drop.

Variants and Related Words

• Annunciate (verb): To announce or proclaim formally.
  • The mayor will annunciate the new policy tomorrow.
• Annunciation (noun): The act of announcing; (capitalized) the Christian festival celebrating the Angel Gabriel's announcement to Mary.
  • The annunciation of the election results was delayed.

Synonyms

• Indicator: A device providing specific information about the state of a system.
• Signaler: Something that sends a signal.
• Herald (for the person): A person who announces important news.

Related Phrases

• "Alarm annunciator": A specific type of annunciator designed to indicate alarm conditions.
  • The alarm annunciator buzzed loudly when the temperature exceeded safe limits.
• "Sequence annunciator": An annunciator that indicates the step or sequence in an automated process.
  • The sequence annunciator advanced to step three.

Related Idioms

Noun

1. an indicator that announces which electrical circuit has been active (as on a telephone switchboard)