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.

The sequence of digits used to identify a particular destination telephone in a network. / (in the plural, humorous) A large number.

cell phone (US)/mobile phone, mobile (UK)

mobile phone, cell phone

(idiomatic) A situation in which a person unsuccessfully attempts to contact another person by telephone and leaves a message instead, and in which the second person then unsuccessfully attempts to return the initial call and leaves a message for the first person, and so on as if the two are playing a game of tag in which the most recent person to have been left with a message is now designated as "it" (i.e. as the player now obliged to chase the other and to attempt anew to make contact).

plural of telephone book

plural of mobile telephone

plural of cellular telephone

A torture device for giving electric shocks, designed using parts from an old-fashioned crank telephone.

(telephony, dated) A female telephone operator.