Synonyms|1.5kAntonyms|96|Broader|33Narrower|77Related|658
2
electronic signal
2
heliograph
2
high sign
2
indicator
2
input signal
2
number
2
output
2
output signal
2
phone number
2
radio beacon
2
radio beam
2
radiotelegraphic signal
2
recording
2
retreat
2
semaphore
2
start
2
starting signal
2
storm signal
2
telegraphic signal
2
telephone number
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APASmart Define. (2016). signal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/signal/thesaurus/narrower
ChicagoSmart Define. 2016. "signal thesaurus" https://smartdefine.org/signal/thesaurus/narrower (accessed September 26, 2026).
HarvardSmart Define 2016, signal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/signal/thesaurus/narrower>.
MLASmart Define. "signal thesaurus" 1 March 2016. Web. 26 September 2026. <https://smartdefine.org/signal/thesaurus/narrower>