Nouns (名詞, meishi)
- Refer to people, places, things, concepts, etc.
- Examples: 犬 (inu, dog), 学校 (gakkou, school), 愛 (ai, love)
Verbs (動詞, doushi)
- Express actions, states, or occurrences.
- Examples: 食べる (taberu, to eat), 行く (iku, to go), する (suru, to do)
Adjectives (形容詞, keiyoushi)
- Describe nouns or other adjectives.
- Examples: 大きい (ookii, big), 赤い (akai, red), 新しい (atarashii, new)
Adverbs (副詞, fukushi)
- Modify verbs, adjectives, or other adverbs.
- Examples: よく (yoku, well), 昨日 (kinou, yesterday), 速く (hayaku, quickly)
Conjunctions (接続詞, setsuzoku)
- Connect words, phrases, or clauses.
- Examples: そして (soshite, and), しかし (shikashi, but), または (mata wa, or)
Particles (助詞, joshi)
- Indicate the grammatical function of words in a sentence.
- Examples: は (wa), が (ga), を (o), に (ni)
Interjections (感動詞, kandoushi)
- Express emotions or reactions.
- Examples: ああ (aa, oh), うわー (uwaa, wow), ええー (eee, eh)
Pronouns (代名詞, daimeishi)
- Take the place of nouns.
- Examples: わたし (watashi, I), あなた (anata, you), 彼 (kare, he)
Prepositions (前置詞, zenyoshi)
- Show the relationship between a noun or pronoun and another word in the sentence.
- Examples: 〜から (kara, from), 〜まで (made, until), 〜と (to, with)
Determiners (連体詞, renteishi)
- Modify nouns to indicate quantity or specificity.
- Examples: この (kono, this), その (sono, that), どの (dono, which)
Auxiliary verbs (助動詞, jodooshi)
- Combine with other verbs to express modal or aspectual meaning.
- Examples: 〜ことができる (koto ga dekiru, can), 〜なければならない (nakereba naranai, must), 〜たい (tai, want to)
Quotative particles (引用助詞, inyou joshi)
- Indicate the beginning or end of a quote.
- Examples: 曰く (いわく, iwak), と (to)
Sentence-final particles (終助詞, shuujoshi)
- Indicate the speaker’s attitude or intent.
- Examples: ね (ne), よ (yo), か (ka)
Other
- There are also other parts of speech in Japanese, such as numerals, onomatopoeia, and mimetics.