say it: hir-BAHY
hereby is an adverb meaning "(formal) by means of this". It is pronounced /hɪɹˈbaɪ/ — hir-BAHY. It carries one recorded sense.
Definitions, synonyms and semantic relations for hereby 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.