入っても

even if someone enters

→ 入る
phrase Uncommon #17,877
even if someone enters Often used in permission phrases such as 入ってもいい, meaning “may I come in?” or “it’s okay to enter.”
JA: ここに入っても大丈夫ですか?
EN: Is it okay if I come in here?

〈入っても大丈夫だ〉

It's okay to come in.

— 炎628 (1985)

入ってもいいな?

I can come in, right?

— ロシアン・ブラザー (1997)

入っても?

Can I come in?

— ラブ・アクチュアリー (2003)

そこに入っても座っても結構です。

You may enter and sit there.