The Japanese Writing System

Three Scripts, One Language

Modern Japanese is written using a combination of three distinct scripts: Hiragana, Katakana, and Kanji. While using three different character sets simultaneously might seem overly complex, each serves a specific purpose in structuring sentences and making written Japanese readable.

In addition to the three main scripts, the Latin alphabet is also used in specific modern contexts.

Hiragana

Hiragana () is the foundational phonetic script of Japanese. It consists of 46 basic characters, each representing a single syllable or sound.

Because it is entirely phonetic, any Japanese word can theoretically be written in Hiragana. However, in standard writing, it is primarily used for:

• Grammatical elements: Particles like or .
• Okurigana: The inflectional endings of verbs and adjectives, such as the in .
• Native Japanese words: Words that either do not have a Kanji or whose Kanji is too obscure for common daily use.

Katakana

Katakana () is the second phonetic script. It has exactly the same sounds as Hiragana, meaning every Katakana character has a direct Hiragana equivalent. You can recognize Katakana by its sharp, angular strokes compared to the cursive, flowing style of Hiragana.

It is mainly used for:

• Loanwords: Words borrowed from other languages, like or .
• Foreign names and places: Such as or .
• Onomatopoeia: Sound-effect words, which are very common in spoken and written Japanese.
• Emphasis: Similar to italics or ALL CAPS in English writing.

Kanji

Kanji () are logographic characters originally adopted from China. Unlike Hiragana and Katakana, which only represent sounds, Kanji represent both sound and a root meaning.

There are thousands of Kanji in regular use, with the Japanese government designating 2,136 characters as the standard for daily literacy (the Jōyō Kanji).

Kanji generally form the core vocabulary of a sentence:

• Nouns
• The stems of verbs
• The stems of adjectives

Because they were imported from China over many centuries, most Kanji have multiple pronunciations depending on the context and the words they are combined with. These are divided into Chinese-derived sounds and native Japanese sounds. You can read more about these rules in the On/Kun Readings post.

Putting It All Together

Written Japanese typically does not use spaces between words. Without spaces, a sentence written entirely in phonetic characters would be extremely difficult to parse. Kanji act as visual anchors that break the sentence into identifiable blocks of meaning.

Let's look at an example sentence that mixes all three scripts:

Here is how the sentence breaks down structurally:

• : Kanji, representing the core noun.
• : Hiragana, acting as grammar to mark the topic.
• : Katakana, representing a foreign loanword.
• : Hiragana, acting as grammar to mark the object.
• : Kanji, the core meaning and stem of the verb.
• : Hiragana, the okurigana providing the verb's tense and politeness level.

By using all three scripts together, the boundaries between words and grammar become visually clear without the need for spaces.

Romaji

Romaji () refers to the Latin alphabet. While not part of the traditional Japanese writing system, it is frequently used in modern daily life.

You will see Romaji on street signs, train station boards, company logos, and acronyms (like CD or USB). Additionally, Romaji is the standard method for typing Japanese on a computer or smartphone—you type the word phonetically using the Latin alphabet, and the device's software automatically converts it into the appropriate Kana and Kanji.

If you are looking for advice on how to structure your studies of these scripts, check out The Roadmap to Nihongo: How to Start Your Japanese Journey.