Heliograph
Heliograph noun - An apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on.
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Synonyms for Heliograph
Warning light and heliograph are semantically related. In some cases you can use "Warning light" instead a noun "Heliograph".
Warning light
Warning light noun - A cautionary sign of danger.
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Synonyms for Warning light
Heliograph and warning light are semantically related. You can use "Heliograph" instead a noun phrase "Warning light".
Mutual synonyms
Related pairs
- alert and heliograph
- alert and warning light
- flare and heliograph
- flare and warning light
- beam and heliograph
- beam and warning light
- signal and heliograph
- signal and warning light
- sign and heliograph
- sign and warning light
- guide and heliograph
- guide and warning light
- lighthouse and heliograph
- lighthouse and warning light
Cite this Source
Warning light and Heliograph. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/heliograph/warning_light
Heliograph & Warning light. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/heliograph/warning_light>.
Warning light or Heliograph. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/heliograph/warning_light.
Google Ngram Viewer shows how "heliograph" and "warning light" have occurred on timeline