Decision, Determination
noun, verbal noun
It's been decided and determined. The decision has been made.
けってい
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. Just be sure to take note of the shortened けつ in 決. It goes to けっ.
今すぐは決定出来ません。
I can't decide right away.
アメリカに支店をオープンするかどうかは明日のミーティングで決定します。
We'll decide in tomorrow's meeting whether to open a branch in the United States.
ホリコシ先生、ご自分のマンガのアニメ化決定について、どう思われますか？
Horikoshi-sensei, how do you feel about the decision to animate your manga?