The phrasal verb "look in on" is predominantly used in informal speech, as it conveys a casual action typically performed in everyday contexts. It is most commonly used when describing the act of visiting someone, often briefly, to check on their well-being or situation, such as checking on a family member or friend. While it might be found in narrative conversations or informal writing, it's less prevalent in formal texts or professional communications, where alternatives like "visit" or "check on" might be preferred. The verb suggests a sense of care or responsibility, often used in contexts involving support or concern, and can imply an unplanned or spontaneous visit rather than a scheduled one. Its usage often conveys empathy and a personal connection to the person being visited.
B2
UpperIntermediate
1. To visit a person briefly to check on their health, safety, progress, or well-being.
I'm going to look in on Grandma to make sure she's feeling better after her cold.
Could you look in on the kids while I'm out to see if they need anything?
2. To quickly check a situation or place, typically to ensure everything is alright.
She promised she'd look in on the office while I was on vacation.
He looked in on the construction site to ensure the work was progressing smoothly.