capitalizationPronunciation: /ˌkapɪt(ə)lʌɪˈzeɪʃ(ə)n/ (also capitalisation)Definition of capitalization noun 1 Finance the provision of capital for a company, or the conversion of income or assets into capital. 2the action of writing or printing in capital letters or with an initial capital. capitalization in other Oxford dictionaries Definition of capitalization in the US English dictionary