ichidan verb, transitive verb
Transitive verb used for intentionally curling or crimping something, such as hair, paper, or ribbon. Often implies a deliberate action to create waves or curls.
彼女はヘアアイロンで前髪を縮らせた。
She curled her bangs with a hair iron.
リボンを縮らせてプレゼントに
I crimped the ribbon and attached it to the present.