To Write
transitive verb, godan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means write so the verb version means to write.
かく
The reading you learned with the kanji is the on'yomi one, but this word is read with the kun'yomi, か. So just be sure to remember the kun'yomi reading to read this word in the car (か) ... or to write it, or whatever.
ブログに書くこと考えなきゃ!
I need to think of what to blog about!
せっかく書いたメモがどこかに行ってしまった。
The notes I had written down went somewhere.
コウイチは、お世辞にも字を書くのが上手だとは言えません。
Koichi's handwriting is far from being good.