to enter; to come in; to join (a club, company, etc.); to enter (a university, the army, etc.); to be contained (in); to be included (in); to (be able to) fit (in a container, building, etc.)
Examples (3 in total)
このお皿、ひびが入ってるよ。
This plate has a crack.
コップにひびが入ってるから中身は漏れてる。
There's a crack in the cup so the contents are leaking.
駐車場に戻ってみたら、車のフロントガラスにひびが入ってた。
When I returned to the parking lot, my car's windshield had a crack in it.