say it: SUHN-set
sunset is a noun and adjective meaning "the time in the evening at which the sun begins to fall below the horizon". It carries 5 recorded senses.
the daily event of the sun sinking below the horizon
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sunset come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.