To allow someone to stay in one's home or place. They decided to take in a stray cat they found on the street.
To understand or absorb information. It was a lot of information to take in during the lecture.
To make a piece of clothing narrower or tighter. She had to take in the dress because it was too loose.
To deceive or trick someone. He was taken in by the scam and lost a lot of money.
To include or encompass something. The tour will take in several historical sites around the city.