Emergency alarm
Signal and emergency alarm are semantically related. In some cases you can use "Signal" instead a noun phrase "Emergency alarm".
Signal
Signal noun - An object intended to give public notice or warning.
Emergency alarm and signal are semantically related. Sometimes you can use "Emergency alarm" instead a noun "Signal".
Cite this Source
Signal and Emergency alarm. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/emergency_alarm/signal
Emergency alarm & Signal. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/emergency_alarm/signal>.
Signal or Emergency alarm. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/emergency_alarm/signal.
Google Ngram Viewer shows how "emergency alarm" and "signal" have occurred on timeline