Good
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of good? It's also good.
Since this word is made up of a single kanji, it probably uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you to remember:
A good way to pass the time is with a yo-yo (よ). But it better be a good yo-yo. A bad one will just fall apart.
お羊ざと天びんざは相しょうが良い。
Aries and Libra are compatible.
けんかするほど仲が良いって言うだろ?
Don't they say, "The closer you are, the more you fight?"
良い考えだけど、実際はそれをするには資金が足りないんだよね。
That’s a good idea, but the fact is that we don’t have enough money for it.