say it: duh-KOY
decoy is a noun and verb meaning "a beguiler who leads someone into danger (usually as part of a plot)". It carries 3 recorded senses.
a beguiler who leads someone into danger (usually as part of a plot)
something used to lure fish or other animals into danger so they can be trapped or killed
lure or entrap with or as if with a decoy
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 decoy 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.