say it: SWEE-pur
sweeper is a noun meaning "an employee who sweeps (floors or streets etc.)". It carries 3 recorded senses.
an employee who sweeps (floors or streets etc.)
a cleaning implement with revolving brushes that pick up dirt as the implement is pushed over a carpet
little-known nocturnal fish of warm shallow seas with an oblong compressed body
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 sweeper 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.