A printed telephone directory.

To broadcast, or be broadcast, by television.

A person who operates a telephone switchboard. / A person who provides assistance in establishing a connection, or who provides information or takes messages via the telephone.

(transitive) To broadcast by television. / (intransitive) To broadcast a television program.

A television broadcast, especially outside of a studio.

The act of sound transmission via the electromagnetic spectrum. / The study and application of telephone technology.

A system of television cameras, connected by cable to a control room, used for surveillance.

(anatomy) A thin, web-like structure or membrane.

Used to express agreement and sympathy with the previous speaker’s statement.

(chiefly Britain, idiomatic) I am mistaken; I thought that what I said (or wrote) was true, but I have just realised that it is not.