say it: SIN-thuh-sahy-zur
synthesizer is a noun meaning "an intellectual who synthesizes or uses synthetic methods". It carries 2 recorded senses.
an intellectual who synthesizes or uses synthetic methods
(music) an electronic instrument (usually played with a keyboard) that generates and modifies sounds electronically and can imitate a variety of other musical instruments
music
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 synthesizer 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.