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この本を購入しました。
I purchased this book.
The act of buying something; a purchase.
新しい車の購入を検討している。
I'm considering the purchase of a new car.
Often used with the verb する to form the verb phrase 購入する.
Compound of the kanji 購 (to purchase) and 入 (to enter), originally from Chinese.
Common in written Japanese, especially in business or formal contexts. Use with を before 購入する (e.g., 本を購入する).