say it: di-KREES
decrease is a noun and verb meaning "a change downward". It carries 6 recorded senses.
the act of decreasing or reducing something
decrease in size, extent, or range
“The amount of homework decreased towards the end of the semester”
“The cabin pressure fell dramatically”
“her weight fell to under a hundred pounds”
“his voice fell to a whisper”
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 decrease 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.