English Dictionary

annunciator

noun

Anything that announces something / An officer in the church of Constantinople, whose business it was to inform the people of the festivals to be celebrated.

The loudspeaker in the train station is an annunciator that announces the arrival and departure of trains.

意味（1）

Anything that announces something

意味（2）

An officer in the church of Constantinople, whose business it was to inform the people of the festivals to be celebrated.

意味（3）

A signalling device that shows which of several electrical circuits is active, especially such a device in a telephone switchboard

意味（4）

(UK, railways) A buzzer in a signal box that sounds when a train activates a treadle positioned on the track, and thus provides a warning or announcement of a nearby train.