say it: KAHY-zur
kaiser is a noun meaning "the title of the Holy Roman Emperors or the emperors of Austria or of Germany until 1918". It is pronounced /ˈkaɪzɚ/ — KAHY-zur. It carries one recorded sense.
the title of the Holy Roman Emperors or the emperors of Austria or of Germany until 1918
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 kaiser 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.