say it: DUH-stur
duster is a noun meaning "a windstorm that lifts up clouds of dust or sand". It carries 4 recorded senses.
a windstorm that lifts up clouds of dust or sand
“it was the kind of duster not experienced in years”
a piece of cloth used for dusting
a pitch thrown deliberately close to the batter
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 duster 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.