tidal wave is a noun meaning "an overwhelming manifestation of some emotion or phenomenon". It carries 3 recorded senses.
an overwhelming manifestation of some emotion or phenomenon
“a tidal wave of nausea”
“the flood of letters hit him with the force of a tidal wave”
“a tidal wave of crime”
a wave resulting from the periodic flow of the tides that is caused by the gravitational attraction of the moon and sun
Definitions, synonyms and semantic relations for tidal wave come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.