noun
second house; second home
A vacation or weekend home, often in a resort area. Used in real estate and lifestyle contexts.
彼は軽井沢にセカンドハウスを買った。
He bought a second home in Karuizawa.
セカンドハウスを持つ人が増えている。
More people are owning second homes.
Variant with interpunct; less common but still seen.
別荘 is a native Japanese term for a vacation home or villa, often implying a more traditional or luxurious retreat, while セカンドハウス is a modern loanword emphasizing a secondary residence.
Loanword from English 'second house'.