say it: BROW-zur
browser is a noun meaning "a viewer who looks around casually without seeking anything in particular". It carries 2 recorded senses.
a viewer who looks around casually without seeking anything in particular
a program used to view HTML documents
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 browser 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.