This kanji can be read with either the kun'yomi or on'yomi readings.
Do you know this kanji's kun'yomi?
I mix up kun’yomi and on’yomi all the time.
The instruction reading may not make a lot of sense, but you've heard this word before. Jump to the reading and you'll know what the meaning of this word is.
The reading is the word 読み (like 読む) and the reading you learned for 訓 combined, making くんよみ. Sounds familiar? It's that kun'yomi reading you've heard so much about.