noun, verbal noun
Something you use that has a use has... well, use. You can even use it for practical applications.
使用 has a slightly more formal tone compared to 使う, and it’s preferred in situations that require a more precise and less casual choice of words.
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.
Excuse me. I don't know how to use this coupon.
Do you know how much water is used in a pool?
We use new biology technology that utilizes insects.