German is the most dramatic departure from English capitalization norms among major European languages. In German, every noun — not just proper nouns — is written with a capital first letter, regardless of where it appears in the sentence.

This applies to all nouns: objects, abstract concepts, animals, places, people, and grammatical categories alike.

• ▸das Haus — the house (Haus is capitalized because it is a noun)
• ▸die Freundschaft — the friendship (abstract noun, still capitalized)
• ▸der Hund — the dog (animal noun, still capitalized)
• ▸Ich liebe das Lesen — I love reading (Lesen is a nominalized verb, capitalized when used as a noun)

This rule applies consistently throughout written German. The only exceptions are adjectives and verbs, which follow the lowercase pattern even when derived from proper nouns: 'deutsch' (German, as an adjective) is lowercase, while 'Deutschland' (Germany, as a proper noun) is capitalized.

German readers rely on capitalization as a grammatical cue — it instantly identifies the nouns in a sentence and helps parse complex German grammar where word order is more flexible than English.

French capitalizes far fewer words than English. Several categories that are always capitalized in English are consistently lowercase in French:

• ▸Days of the week: lundi, mardi, mercredi (not Lundi, Mardi, Mercredi)
• ▸Months: janvier, février, mars (not Janvier, Février, Mars)
• ▸Languages: le français, l'anglais, l'espagnol (not Le Français, L'Anglais)
• ▸Nationalities used as adjectives: un étudiant français, une voiture allemande
• ▸Religions: le christianisme, l'islam, le bouddhisme

However, French does capitalize nationalities when used as nouns rather than adjectives: 'un Français' (a French person) versus 'un étudiant français' (a French student). The distinction between noun and adjective determines whether the capital letter appears.

French also differs in title capitalization. Where English title case capitalizes most words in a headline, French traditionally capitalizes only the first word and proper nouns — making French headlines look like sentence case to English-trained eyes.

Spanish and Italian follow a similar pattern to French — both use significantly fewer capitals than English.

In Spanish, days of the week (lunes, martes, miércoles), months (enero, febrero, marzo), languages (español, inglés, francés), and nationalities used as adjectives (un estudiante español) are all lowercase. The same rules apply in Italian: lunedì, gennaio, italiano.

One notable difference: Spanish does not capitalize the pronoun 'yo' (I), unlike English which always capitalizes the first-person singular pronoun 'I'. This reflects a different grammatical tradition — English capitalizes 'I' for historical reasons tied to calligraphy and manuscript conventions, not grammatical rules that other languages share.

Both Spanish and Italian capitalize proper nouns, the first word of a sentence, and titles when used before names — the same way English does for those specific cases.

Arabic and Hebrew are written right-to-left and use scripts that have no uppercase or lowercase forms at all. Every letter is the same 'case' regardless of its position in a sentence, its grammatical role, or whether it begins a proper noun.

This means concepts like title case, sentence case, and proper noun capitalization simply do not exist in these languages at their script level. The grammatical distinctions that English conveys through capitalization — proper versus common noun, beginning of sentence, emphasis — are conveyed in Arabic and Hebrew through other means: context, word order, and in some cases vowel markings.

When Arabic and Hebrew text is transliterated into the Latin alphabet (romanized), the transliteration typically follows English capitalization conventions — capitalizing proper names and the start of sentences. But this is an adaptation to the Latin script's conventions, not a reflection of how the original scripts work.

Chinese, Japanese, and Korean do not use alphabetic scripts with case distinctions. Chinese characters (hanzi), Japanese characters (kanji, hiragana, katakana), and Korean characters (hangul) each have only one form — there is no uppercase or lowercase version of any character.

Japanese uses four writing systems simultaneously (hiragana, katakana, kanji, and sometimes the Latin alphabet). Katakana, which is used for foreign loanwords and certain emphasis functions, is sometimes compared loosely to the 'emphasis' role that capitalization plays in English — but it is a different script entirely, not an uppercase form of hiragana.

When Japanese, Chinese, or Korean text incorporates English words or Latin characters — which happens frequently in technical writing, brand names, and modern media — the Latin characters follow standard English capitalization conventions. But within the native scripts themselves, case is a concept that does not apply.

For anyone publishing multilingual content, translating documents, or working with international teams, the differences in capitalization conventions create practical decisions:

• ▸Do not assume 'proper noun = capital' is universal — it is English convention, not linguistic law
• ▸When translating to French, Spanish, or Italian, months, days, and nationalities should be lowercased even if they were capitalized in the English source
• ▸When translating from German, expect capital letters on nouns that would be lowercase in English
• ▸When adapting English marketing copy into non-Latin scripts, capitalization strategies (title case, sentence case) become irrelevant — ask a native speaker how emphasis or formality is expressed in that script
• ▸Style guides for multilingual content should specify the capitalization convention for each target language separately, not derive it from the English version

The deeper point: capitalization feels like a basic rule of writing, but it is actually a set of language-specific conventions layered on top of alphabet-specific script features. English conventions are coherent within English — they do not generalize to other writing systems, and they should not be assumed to.