- Writing system : A set of signs used to represent a language, such as an alphabet, or a set of rules used to write a language, such as conventions of spelling and punctuation.
- Orthography : Art or study of correct spelling and grammar according to established usage.
- Japanese language : (日本語 Nihongo), Japonic language spoken mostly in Japan; Japonic family's linguistic relationship to other tongues yet to be established, though Japanese may be related to Korean; written in a combination of Chinese-derived characters (漢字 kanji) and native hiragana (ひらがな) and katakana (カタカナ) scripts; about 125,000,000 native speakers worldwide.
- Chinese characters : (simplified Chinese 汉字; traditional Chinese: 漢字) are symbols used to write varieties of Chinese and - in modified form - other languages; world's oldest writing system in continuous use.
- Phonology : In linguistics, the study of the system used to represent language, including sounds in spoken language and hand movements in sign language.
- Morphology (linguistics) : The study of word structure; the study of such patterns of word-formation across and within languages, and attempts to explicate formal rules reflective of the knowledge of the speakers of those languages.
- Hiragana : (ひらがな) one of three scripts used in the Japanese writing system, representing moras (units similar to syllables); typically used to write grammatical particles or explicitly indicate pronunciation.
- Katakana : (カタカナ) one of three scripts used in the Japanese writing system, representing moras (units similar to syllables); typically used to write loanwords or explicitly indicate pronunciation.
- Roomaji : Add brief definition or description
- Culture of Japan