Noun

• S: (n) dial (the face of a timepiece; graduated to show the hours)
• S: (n) dial (the control on a radio or television set that is used for tuning)
• S: (n) dial (the circular graduated indicator on various measuring instruments)
• S: (n) dial, telephone dial (a disc on a telephone that is rotated a fixed distance for each number called)

Verb

• S: (v) dial (operate a dial to select a telephone number) "You must take the receiver off the hook before you dial"
• S: (v) dial (choose by means of a dial) "dial a telephone number"