to get used to seeing, to be familiar with

💡 Nuance & Usage: Used when something or someone that was initially unfamiliar becomes familiar through repeated viewing. It often implies that something no longer feels strange or new. (最初は見慣れなかったものが、繰り返し見ることで普通に感じるようになる状態を表す。「見慣れない」という否定形でもよく使われる。)