鳥類（ちょうるい、chourui）
- bird

The word 鳥類 (ちょうるい) means "birds" or "avian species" in English. It refers to all types of birds, encompassing a wide variety of species with characteristics like feathers, wings, and beaks. 鳥類 is a collective noun, representing the entire class of birds.

⚫︎日本には様々な鳥類が生息しています。 Translation: Various bird species inhabit Japan. ⚫︎動物園で様々な鳥類を見ることができました。 Translation: I was able to see various birds at the zoo. ⚫︎鳥類の研究は、進化の過程を理解する上で重要です。 Translation: The study of birds is important for understanding the process of evolution.

You use 鳥類 when you want to talk about birds in general or a group of different bird species. It is appropriate for scientific discussions, casual conversations, or descriptions of nature. It's a more formal and comprehensive term than referring to a single bird.

鳥類 is typically written with the kanji for "bird" (鳥) and "class/category" (類). The reading is ちょうるい in hiragana. There are no variations in the okurigana.

There are no direct synonyms for the general term 鳥類 that fully capture its meaning. However, related words include: ⚫︎ 鳥 (とり) - bird (singular or plural, more informal) ⚫︎ 鳥の仲間 (とりのなかま) - bird family/birds (a more descriptive phrase) ⚫︎ 鳥綱 (ちょうこう) - class Aves (scientific classification)

There are no direct antonyms for 鳥類, as it is a category of animals. However, you could consider contrasting it with other animal categories: ⚫︎ 哺乳類 (ほにゅうるい) - mammals ⚫︎ 爬虫類 (はちゅうるい) - reptiles ⚫︎ 魚類 (ぎょるい) - fish

世界には約1万種の鳥類が生息していると言われています。 ・Translation: It is said that approximately 10,000 species of birds live in the world. ・Explanation: This sentence uses 鳥類 to describe the global population of birds, highlighting the diversity of the avian species.

この公園は、珍しい鳥類を観察できることで知られています。 ・Translation: This park is known for allowing observation of rare birds. ・Explanation: This sentence indicates a specific park that is famous for bird watching, using 鳥類 to refer to the various bird species available for observation.

The word 鳥類 is composed of two kanji: 鳥 (とり), meaning "bird", and 類 (るい), meaning "class," "type," or "species." Therefore, 鳥類 literally means "bird species" or "bird class," accurately representing the group of animals it describes.