hailer
pl: hailers
Related Words
megaphoneloudspeakerbullhornsoundvoiceshoutcallamplifiervolumeaudiocommunicationbroadcastsignalnoiseacousticspeakermicrophonedecibelannouncementcrowdattentionalertwarningsummonsgreetingsalutationhailyellbellowcryclamorvocalityprojectionresonanceechotransmissionelectronicbatteryhandheldconediaphragmtransducerfrequencywaveamplitudeaudibilityaudibleloudboomingpiercingstentorianvociferousheraldcriermessengernotificationcommanddirectioninstruction