機械（きかい、kikai）
- machine

The Japanese word 機械 機械 (きかい) primarily means "machine," "machinery," or "mechanism." It refers to a device or system that uses power to perform a specific task or tasks. It can encompass a wide range of devices, from simple tools to complex industrial equipment. The word emphasizes the mechanical aspect and the function of the device.

⚫︎この工場にはたくさんの機械がある。 Translation: There are many machines in this factory. ⚫︎新しい機械を導入する予定です。 Translation: We plan to introduce a new machine. ⚫︎あの機械の操作方法を教えてください。 Translation: Please teach me how to operate that machine.

You can use 機械 機械 in various contexts. ⚫︎When talking about specific machines like cars, computers, or washing machines. ⚫︎When discussing industrial machinery and manufacturing processes. ⚫︎When referring to the overall concept of machinery or mechanical devices. The word is typically used in a formal to neutral context.

⚫︎The word is most commonly written with the kanji 機械. ⚫︎The reading is きかい in hiragana. ⚫︎There are no variations in okurigana. ⚫︎It's uncommon to see it written in katakana unless for emphasis or in specific technical contexts, e.g., to represent the name of a machine.

⚫︎装置 (そうち) - "Equipment," "device," "installation" (broader, includes non-mechanical devices) ⚫︎マシン (mashin) - "Machine" (loanword from English, often used for specific types of machines)

⚫︎There isn't a single direct antonym for 機械, as it is a specific category. You could consider words related to manual labor or the absence of machinery, depending on the context.

その機械は、自動でたくさんの部品を組み立てます。 ・Translation: That machine assembles many parts automatically. ・Explanation: This sentence describes a machine that performs an automated task, highlighting its function.

新しい機械の性能はとても高いです。 ・Translation: The performance of the new machine is very high. ・Explanation: This sentence describes the performance of a 機械, focusing on its efficiency or capabilities.

The kanji 機 means "machine," "opportunity," or "mechanism," and the kanji 械 means "equipment" or "apparatus." The combination of these two characters creates the word 機械, representing a mechanical device or apparatus.