A telephony signal, usually in the form of a sound, used to indicate that the telephone exchange is working, has recognized an off-hook, and is ready to accept a call.

plural of dial indicator

The dial of a watch or clock on which the hours have been marked with a radium compound to make them luminous

Any device for comparing a physical property of two objects, or an object with a standard.

(colloquial) A situation when one's cellphone makes a call from one's back pocket where its buttons are being inadvertently pressed

(colloquial) To accidentally make a call this way.

A function on some telephones allowing a phone number to be dialed by pressing only one or two keys.

(transitive, telephony) To dial using speed dial.

(historical) A miner's magnetic compass.

plural of dial-up