Heliograph
Heliograph verb - Signal by means of a mirror and the using the sun's rays.
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Synonyms for Heliograph
Signal and heliograph are semantically related. In some cases you can use "Signal" instead the word "Heliograph" as a verb or a noun.
Signal
Signal verb - To direct or notify by a movement or gesture.
Heliograph and signal are semantically related. Sometimes you can use "Heliograph" instead a noun "Signal".
Cite this Source
Signal and Heliograph. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/heliograph/signal
Heliograph & Signal. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/heliograph/signal>.
Signal or Heliograph. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/heliograph/signal.
Google Ngram Viewer shows how "heliograph" and "signal" have occurred on timeline