火
This Chinese character means fire.
You can watch how to write this. - (「火」の書き順（筆順）動画 - 漢字書き順辞典)
There are 2 main ways to read this, "ひ" or "か".
"火曜日 (かようび)" means Tuesday.
"火星 (かせい)" means Mars.
"火事 (かじ)" means fire.
"事 (じ, こと)" means event in this context.
"消火器 (しょうかき)" means fire extinguisher.
"消火 (しょうか)" means extinguish fire.
"消 (しょう, けす)" means erase, delete, extinguish.
"器 (き)" means equipment in this context.
Once you learn a lot of Chinese characters, you will be able to analogize their meanings.
It's tough, but you'll do great.
By Higashi-Mikawa Kyōjindō Shujin (東三河狂人堂主人)