To Appear
To Emerge
intransitive verb, ichidan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji means appear, so this word means to appear or to emerge.
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: It looks like something is going to appear in front of you. You are so scared and surprised you can't even speak properly: "Are what??" (あらわ) you ask, trying to figure out what's appearing in front of you.
ここで待っていれば、きっとまたあのトラ猫が現れるよ。
If you wait here, I'm sure that tabby cat will show up again.
私の夢を笑わずに理解してくれる人が現れて、うれしいです。
I'm glad someone has come along who understands my dreams without laughing at them.
アイツはいつも、寝坊しても、遅刻なんてしてませんという顔をして白々しくオフィスに現れる。
Even when he oversleeps, he always shows up to the office playing dumb, with a look on his face that says "What, late? Not me."