Definitions
1.nounA graduated, circular scale over which a needle moves to show a measurement (such as speed).
2.nounA clock face.
3.nounA sundial.
4.nounA panel on a radio etc showing wavelengths or channels; a knob that is turned to change the wavelength etc.
5.nounA disk with finger holes on a telephone; used to select the number to be called.
6.nounA person's face.
7.nounA miner's compass.
8.verbTo control or select something with a dial, or (figuratively) as if with a dial."President Trump has recently dialled down the rhetoric."
9.verbTo select a number, or to call someone, on a telephone."In an emergency dial 999."
10.verbTo use a dial or a telephone."Please be careful when dialling."