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.

To cause to give a higher tone or sound; to give a higher tone to; to make more intense; to heighten; to strengthen. / To firm and strengthen the muscles of the body by regular exercise.

(Britain) Alternative spelling of tone dialing

(Chinese phonetics) A short, sharp tone found with syllables that end in plosives (usually /-p -t -k -ʔ/).

(physiology) The continuous and passive partial contraction of the muscles, which helps maintain posture.

plural of tone mark

(linguistics) A symbol used to indicate tones in tonal languages.

plural of tone poem

The quality, manner or way an individual speaks.

plural of leading tone