Cases of word usage

1) (also called antenna) a part of a radio or TV system which receives or sends out signal (aerial)

2) to send out (speech, music etc) by radio or TV (broadcast)

3) a person who gives a radio or TV commentary (commentator)

4) (to be) the presenter of a stage, TV or radio entertainment who introduces the performers, speakers etc (compere)

5) a play for the theatre, radio or TV (drama)

6) a person who edits (part of) a newspaper, book or film or a TV or radio programme (editor)

7) (of) the form of light (between visible colours and radio waves) producing heat (infrared)

8) an instrument for increasing the volume of sound, as in telephones, radio etc (microphone)

9) a very short wave (as used in radio and radar) (microwave)

10) a senior pupil given duties in a school; a person, apparatus, that listens to or watches foreign radio and television programmes; a screen on which information can be seen (monitor)