The term "second home" refers to a place that is not one's primary residence, but rather an additional property or location where someone spends time and feels comfortable. This could be a vacation house, a cabin in the woods, a beachfront condo, or even a rented apartment in another city for extended stays. The phrase implies that this place is more than just a temporary lodging - it's somewhere people return to regularly, where they have personal belongings and feel at home.