check into

Idioms  

1. Investigate something, as in I don't know when they open but I'll check into it . Also see check out .

2. Register one's arrival at, as in She was about to check into the hospital . Also see check in , def. 1.

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Example Sentences

Talley told the group chat: “I’m going to try and use the levers of the legislative branch to check into his detention.”

From Slate • May 28, 2026

I request one every time I check into a hotel, with mixed success.

From The Wall Street Journal • Apr. 15, 2026

But we check into the Hotel La Perla, Hemingway’s favored lodging for his later visits.

From Salon • Nov. 8, 2025

However, the expiration policy requires users to check into the Airbnb within seven days, not just book within seven days.

From Los Angeles Times • Jan. 28, 2025

That January, he was desperate enough to check into a hospital again.

From "The Woman All Spies Fear" by Amy Butler Greenfield