Heart
Mind, Feeling
noun
The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word:
Imagine a giant heart sitting in a rowing boat. It's also drinking cocoa. Focus on all three of these parts and associate them into one story / memory. Once you've done that, sing the "cocoa row" (こころ) song! I don't know what that song is, but I want you to make one up and actually sing it, out loud. If you do, I bet you won't forget this word's reading too easily.
おもいやりの心
compassion
おもてなしの心
the spirit of hospitality
人の心
the human mind, human feelings
心がいたむ
to be worried, to feel hurt
心がおちつく
to feel more relaxed
心がおれる
to feel very discouraged
心にひびく
to strike a chord
心にのこる
to be unforgettable
心にきめる
to be determined
心をいやす
to be soothed
心をひらく
to open one's heart
心をうごかす
to touch someone's heart
心のキズ
heartbreak
心のゆとり
room in one's heart
心のケア
emotional care, emotional support
パパは心が大きい。
Dad has a big heart.
キューピッドの矢が心にささった。
Cupid's arrow struck my heart.
「おはよう、王子」と、心の中でいった。
"Good morning, prince," I said in my mind.