telephone

(noun) electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds. Synonyms: phone, telephone set. Example: "I talked to him on the telephone."

(noun) transmitting speech at a distance. Synonyms: telephony.

(verb) get or try to get into communication (with someone) by telephone. Synonyms: call, call up, phone, ring. Examples: "I tried to call you all night." "Take two aspirin and call me in the morning."