Editing Esperanto orthography (section)

=== Capitalization ===
[[Capitalization]] is used for the first word of a sentence and for proper names when used as nouns. Names of months, days of the week, ethnicities, languages, and the adjectival forms of proper names are not typically capitalized ''(anglo'' "an Englishman", ''angla'' "English", ''usona'' "US American"), though national norms may override such generalizations. Titles are more variable: both the Romance style of capitalizing only the first word of the title and the English style of capitalizing all lexical words are found.

All capitals or small capitals are used for [[acronym]]s and [[initialism]]s of proper names, like ''[[TEJO]],'' but not common expressions like ''ktp'' (etc.). Small capitals are also a common convention for [[family name]]s, to avoid the confusion of varying national naming conventions: {{Smallcaps|Kalocsay}} Kálmán, [[Leslie Cheung|Leslie {{Smallcaps|Cheung}} Kwok-wing]].

[[Camel case]], with or without a hyphen, may occur when a prefix is added to a proper noun: ''la geZamenhofoj'' (the Zamenhofs), ''pra-Esperanto'' ([[Proto-Esperanto]]). It is also used for [[Russian orthography|Russian-style]] syllabic acronyms, such as the name ''ReVo'' for ''Reta Vortaro'' ("Internet Dictionary"), which is homonymous with ''revo'' (dream). Occasionally mixed capitalization will be used for orthographic puns, such as ''espERAnto,'' which stands for the ''esperanta radikala asocio'' (Radical Esperanto Association).

Zamenhof contrasted informal ''ci'' with formal, and capitalized, ''Vi'' as the second-person singular pronouns. However, lower-case ''vi'' is now used as the second-person pronoun regardless of number.