Experience
noun, verbal noun
Through various tests over the passage of time, you have gained much experience. Time and testing is all it takes.
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.
すごく良い経験になりました。
It was a great experience.
若いうちに色々な経験をしておいた方がいいよ。
You should have a lot of experience while you're young.
私は、飛行機で旅行をした経験がありません。
I've never had the experience of traveling by plane.