second home

second home (plural second homes)

1. vacation home

   Hyponym: summer house

2. pied-à-terre
3. A home of a close relative or friend where one spends a great deal of time or feels welcome.
4. Any place where one spends a great deal of time away from one's primary home, such as an office, a remote town or a foreign country.

• home away from home

• “second home” (US) / “second home” (UK) in Macmillan English Dictionary.
• “second home” in Longman Dictionary of Contemporary English, Longman.