When you want to turn on the air conditioning, please press the white button.
We can do nothing but wait for time to solve this.
Whenever I’m happy, I always think it would be nice if I could stop time.
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:
What time is it? It's time to key (とき) your enemy's car. Imagine yourself looking at your watch, waiting until the correct time to perform a synchronized keying of someone's car. Who do you hate the most? Whose car would you like to key?