To Exit
To Leave, To Attend, To Come Out, To Go Out
intransitive verb, ichidan 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 "exit" so what is the verb form of this? It is to exit.
でる
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
You want to exit the room you're in. Why? Because it has a dead (で) body in it. Seriously. You should exit now. It's a dead (で) room (る)!
あちらの出口から出てください。
Please leave using that exit.
くしゃみが出そうで出ない。
It looks like you have to sneeze, but can't.
わたしは、パチンコやからいそいで出た。
I made a hasty exit from that pachinko parlor.