wire-tapper noun. ['wʌɪǝtapǝ] L19.
[from WIRE noun + TAPPER noun¹.]
A person who makes a (usu. secret) connection to a telephone or telegraph circuit in order to intercept messages or eavesdrop.

■ wire-tap noun & verb (a) noun an act of tapping a telephone line, esp. as a form of surveillance; the device by which this is done; (b) verb trans. tap the telephone line of; monitor (a call) by means of a wire-tap: M20.

■ wire-tapping verbal noun the practice or activity of a wire-tapper E20.

[TahlilGaran] English Dictionary ▲