An electromechanical or electronic bell, klaxon, chime, horn, speaker, strobe light or other device which warns people in a building of a possible fire or other condition requiring evacuation.
The sound or other warning made by a fire alarm.
An emergency response to a fire by the fire department with manpower and equipment.
A measuring or reporting device, particularly one which makes a ticking sound as the measured events occur.
A watch (timepiece).
A heart, especially a human one.
One who makes a tick mark.
A birdwatcher who aims to see (and tick off on a list) as many bird species as possible.
A ticker tape, either the traditional paper kind or a scrolling message on a screen.