Purchase
Purchasing
noun, verbal noun
When your purchase enters into effect, you have made your purchase.
購入 is a relatively formal word for the act of purchasing something.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
新しいソフトウェアの購入を検討しています。
I'm considering purchasing new software.
購入後の返品は、未使用の場合に限ります。
After purchasing, returns are only accepted if the item is unused.
購入の際には、必ず領収書を受け取ってください。
Please be sure to get a receipt when making a purchase.
この店で偽のシャネルN°5を購入しました。
This is the store where I bought the fake Chanel Number 5.