noun A device for transmitting conversations and other sounds in real time across distances, now often a small portable unit also capable of running software etc.
Daragh's on the phone at the moment. He'll call you when he's finished.
noun A person's telephone number (as a means of contact); digits.
verb To call (someone) using a telephone.
Phone me as soon as you land at the airport.
verb To say via telephone.
noun A speech segment that possesses distinct physical or perceptual properties, considered as a physical event without regard to its place in the phonology of a language.