Friendship
noun
If you have a friend you like, well, that's true friendship!
ゆうこう
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.
このキーホルダーは、私たちの友好のシンボルです。
This key chain is a sign of our friendship.
日本と米国の友好は強いですか？
Is the friendship between Japan and the United States strong?
あそこの家のおじさん友好的だけど、実はヤクザの隠れメンバーらしいよ！
The man who lives in that house over there is friendly, but apparently he's secretly a yakuza member!