訓 (Kanji for kunyomi)

Ironically, 'Kun' is only used in compound words. . .it doesn't have a kun-reading of its own.

Onyomi

KUN

When you talk about the KUNyomi of a river, you say, "It's kawa!"

訓読み(くんよみ)

yep yep. ★★★☆☆
訓 (kunyomi) + 読 (read) = 訓読み (yep yep.)

訓練(くんれん)

training ★★☆☆☆
訓 (kunyomi) + 練 (practice) = 訓練 (training)

training - more serious than 練習； more like for the army or kung fu

教訓(きょうくん)

lesson ☆☆☆☆☆
教 (teach) + 訓 (kunyomi) = 教訓 (lesson)

a lesson. Often used like this:

きょうくん　に　なった！('That taught me a lesson!')

	Meaning	Hint	Radical
訓	kunyomi	SAY	言
順	sequence	HEAD	頭

You SAY kunyomi when you talk,

but you have to figure out the sequence of the words in your HEAD.