noun
family temple; ancestral temple
A Buddhist temple where a family's ancestors are enshrined and memorial services are held; often the temple where the family grave is located.
お盆には菩提寺にお参りに行きます。
During Obon, we visit our family temple.
彼の家の菩提寺は京都にある。
His family's ancestral temple is in Kyoto.
A grave or tomb; 菩提寺 is the temple that often houses the family grave, but the two are distinct concepts.
From 菩提 (bodai, 'enlightenment' or 'supreme wisdom', from Sanskrit bodhi) + 寺 (ji, 'temple'). Originally referred to a temple built for the purpose of praying for the enlightenment of ancestors.