Relationship
Relation
noun
The kanji and the word are exactly the same. That means they share meanings as well.
The reading is the kun'yomi reading since it's a single kanji, all alone, but this is the reading you learned with the kanji, so you should be okay and have a great relationship with this word going forward.
仲がいい
on good terms
仲がよい
on good terms
仲がわるい
on bad terms
母親とは、あんまり仲が良くないんだよね。
I don't get along with my mother very much.
きっ茶店で仲むつまじい老ふうふをみて、ちょっとほっこりしました。
I saw a harmonious elderly couple at a cafe and it made me feel warm inside.
キンニクマ：「うわ！お前らちょっと仲良すぎじゃね？」 ワニカニとトーフグ：「なんで？ただのマブダチだよ。」
Kinnikuma: "Wow! You guys have a close relationship don’t you?" WaniKani and Tofugu: "How so? It’s just a bromance."