All public-address system synonyms
pub·lic-ad·dress sys·tem
P p noun public-address system
- loudspeaker — any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.
- megaphone — a cone-shaped device for magnifying or directing the voice, chiefly used in addressing a large audience out of doors or in calling to someone at a distance. Compare bullhorn.