Noun
がいこう
今日は、日本の外交についてはなしあいをしました。
We discussed Japanese diplomacy today.
外交かんが不足している。
We have a shortage of diplomats.
日本は外交があまり上手ではない。
Japan isn’t very good at diplomacy.
You want to mix opinions from outside your country into the way you handle things. That's called diplomacy. If you mix your country with the ones outside of your own, you'll all profit!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.