to investigate; to try to get information about (something); to try to discover the facts about something such as a problem or a crime

Investigators are looking into the cause of the accident.

The police checked into her story.

Is there a problem? I could look into it.

I’ll have to look into that matter.

Don’t worry about your problem. I’ll see into it.

I wrote a letter of complaint, and the airline have promised to look into the matter.

We’re looking into the possibility of merging the two departments.