a device that is used for recording sounds or for making your voice louder when you are speaking or singing to an audience to speak into the microphone Their remarks were picked up by the hidden microphones. Wordfinderaudience, auditorium, concert, interval, microphone, perform, programme, soloist, support, venue See related entries: Film-making equipment, Live musicExtra examples He was wearing a hidden microphone. Interviewees are placed in front of the microphone and grilled. The voice of Formula One is back behind the microphone for a new series. The microphone picks up the surrounding sounds. There’s a place to plug in an external microphone. Unfortunately we were near an open microphone and all his colleagues heard what we said.