wiretap
noun
an act or instance of tapping telephone or telegraph wires for evidence or other information.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The FBI was wiretapping South Vietnam’s embassy and monitoring Chennault’s movements in Washington, including her visit to that embassy on Oct.
From Washington Post