Hidden microphone
Tap and hidden microphone are semantically related In some cases you can use "Tap" instead a noun phrase "Hidden microphone".
Tap
Tap noun - A fixture for controlling the flow of a liquid.
Hidden microphone and tap are semantically related in listening device topic. You can use "Hidden microphone" instead a noun "Tap".
Cite this Source
Tap and Hidden microphone. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/hidden_microphone/tap
Hidden microphone & Tap. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/hidden_microphone/tap>.
Tap or Hidden microphone. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/hidden_microphone/tap.
Google Ngram Viewer shows how "hidden microphone" and "tap" have occurred on timeline