Monster
noun
If you come across a suspicious thing it's probably a monster! Run away!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
怪物には友達がほとんどいなかった。
The monster had very few friends.
怪物はメガネを掛けたが、似合わないと言われてすぐに外した。
The monster put on his glasses, but he was told they didn't suit him and took them off soon after that.
この山には、心の優しい怪物が住んでいるという言い伝えがある。
Legends say there is a kind hearted monster living in this mountain.