General Rules for Capitalization in Indonesian
Indonesian, known as Bahasa Indonesia, has its own set of rules for when to use capital letters. While some rules may seem similar to those in English, there are important differences that learners should be aware of. Below are the key principles you need to know.
1. Capitalize the First Word in a Sentence
Just as in English, always capitalize the first letter of the first word in a sentence. This applies to both regular sentences and direct quotations.
Example: Saya suka belajar bahasa Indonesia. (I like learning Indonesian.)
2. Proper Nouns
All proper nouns—names of people, places, organizations, and specific events—must be capitalized.
- People’s names: Budi Santoso, Siti Aminah
- Geographic locations: Jakarta, Sumatera, Gunung Merapi
- Institutions and organizations: Universitas Indonesia, Bank Negara Indonesia
- Historical events: Proklamasi Kemerdekaan (Proclamation of Independence)
3. Titles and Honorifics
Capitalize titles and honorifics when used with a name. If the title appears without the name, it is not capitalized.
Example:
- Presiden Joko Widodo (President Joko Widodo)
- Gubernur DKI Jakarta (Governor of DKI Jakarta)
- But: presiden mengatakan… (the president said…)
4. Names of Days, Months, and Holidays
Days of the week, months of the year, and holidays are always capitalized in Indonesian.
- Senin, Januari, Hari Raya Idul Fitri
5. Names of Religions and Sacred Books
The names of religions, gods, and sacred books are capitalized.
- Islam, Kristen, Hindu, Al-Qur’an, Injil
6. Names of Languages and Nationalities
Capitalize the names of languages and nationalities.
- Bahasa Indonesia, Bahasa Inggris, Orang Jepang
7. Acronyms and Initialisms
Every letter in an acronym or initialism is written in uppercase.
- UNESCO, KTP (Kartu Tanda Penduduk)
Common Mistakes to Avoid
Many learners of Indonesian, especially those with English backgrounds, tend to overcapitalize. Here are some common mistakes and how to avoid them:
- Do not capitalize common nouns: Unlike in English, do not capitalize words like ibu (mother) or bapak (father) unless they are used as titles before a name.
- Do not capitalize adjectives derived from place names: For example, bahasa inggris (English language) is capitalized, but orang inggris (English person) is not, unless it starts a sentence.
- Do not capitalize the word “bahasa”: For example, bahasa Indonesia, not Bahasa Indonesia.
Capitalization in Indonesian Titles
When writing titles of books, articles, or official documents in Indonesian, only the first word and any proper nouns are capitalized. This differs from English, where most words in a title are capitalized.
Example: Panduan belajar bahasa Indonesia untuk pemula (A Guide to Learning Indonesian for Beginners)
Practice Makes Perfect
The best way to master Indonesian capitalization is through practice. Read Indonesian newspapers, books, or blogs—like Talkpal’s AI language learning blog—to see these rules in action. Try writing your own sentences and titles, then check your work against these guidelines.
Conclusion
Understanding the rules for capitalizing words in Indonesian will help you communicate more clearly and professionally. Remember the key differences from English, especially regarding common nouns and adjectives. With regular practice and reference to trusted resources like the Talkpal blog, you’ll soon write in Indonesian with confidence and accuracy.
