"dials" in the noun sense
the face of a timepiece graduated to show the hours
the control on a radio or television set that is used for tuning
the circular graduated indicator on various measuring instruments
4. dial, telephone dial
a disc on a telephone that is rotated a fixed distance for each number called
"dials" in the verb sense
operate a dial to select a telephone number
"You must take the receiver off the hook before you dial"
choose by means of a dial
"dial a telephone number"
Source: WordNet® (An amazing lexical database of English)
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