say it: STAF-ur
staffer is a noun meaning "an employee who is a member of a staff of workers (especially a member of the staff that works for the President of the United States)". It carries one recorded sense.
an employee who is a member of a staff of workers (especially a member of the staff that works for the President of the United States)
United States
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 staffer 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.