Brain wave
Brain wave noun - (neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph.
Hint and brain wave are semantically related. In some cases you can use "Hint" instead a noun phrase "Brain wave".
Hint
Hint noun - A slight or indirect pointing to something (as a solution or explanation).
Brain wave and hint are semantically related. Sometimes you can use "Brain wave" instead a noun "Hint".
Mutual synonyms
Cite this Source
Hint and Brain wave. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/brain_wave/hint
Brain wave & Hint. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/brain_wave/hint>.
Hint or Brain wave. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/brain_wave/hint.
Google Ngram Viewer shows how "brain wave" and "hint" have occurred on timeline