To Shrink, To Contract
intransitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means shrink so the verb vocab version means to shrink.
ちぢまる
Jesus couldn't cause the monster to shrink. He had to transform into cheese jesus (ちぢ), a more powerful version of himself, in order to shrink the monster down to size.
雷がゴロゴロ鳴っている間、うちの犬は怖がって縮まっていました。
My puppy was shrinking in fear while the thunder was rumbling.