second home


noun

an additional residence, as at the shore or in the country, where one goes on weekends, vacations, and the like.
another residence, as of a close relative or friend, where one spends a great deal of time or feels welcome and at home: Aunt Sue's house was my second home.
any place where one spends a great deal of time: My office is my second home.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019