W: (n) air [Related to: air] (medium for radio and television broadcasting) "the program was on the air from 9 til midnight"; "the president used the airwaves to take his message to the people"
W: (n) sender [Related to: send] (set used to broadcast radio or tv signals)
W: (n) broadcast [Related to: broadcast] (a radio or television show) "did you see his program last night?"
S: (v) air (expose to warm or heated air, so as to dry) "Air linen"
S: (v) vent, ventilate, air out, air (expose to cool or cold air so as to cool or freshen) "air the old winter clothes"; "air out the smoke-filled rooms"