second home

second home (plural second homes)

1. A secondary residence.
   1. country house
   2. vacation home

      Hyponyms: summerhouse, winterhouse

   3. pied-à-terre
2. A home of a close relative or friend where one spends a great deal of time or feels welcome.
   • 1960 March, N. Caplan, “The Railway Member of Parliament”, in Railway Magazine, page 208:

     After the death of his [Verney's] first wife, he proposed to Florence Nightingale but she refused him. Later he married her sister, and for many years Claydon was Miss Nightingale's second home.

3. 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.