Emergency signal
Signal and emergency signal are semantically related. in siren topic. In some cases you can use "Signal" instead a noun phrase "Emergency signal".
Signal
Signal noun - An object intended to give public notice or warning.
Emergency signal and signal are semantically related. You can use "Emergency signal" instead a noun "Signal".
Cite this Source
Signal and Emergency signal. (2016). Retrieved 2026, July 30, from https://thesaurus.plus/related/emergency_signal/signal
Emergency signal & Signal. N.p., 2016. Web. 30 Jul. 2026. <https://thesaurus.plus/related/emergency_signal/signal>.
Signal or Emergency signal. 2016. Accessed July 30, 2026. https://thesaurus.plus/related/emergency_signal/signal.
Google Ngram Viewer shows how "emergency signal" and "signal" have occurred on timeline