noun
family grave; ancestral tomb
Shinto term for a family or ancestral grave. Often seen on gravestones or in ritual contexts.
See also: 墓
神社の裏手に、代々の奥津城がある。
Behind the shrine, there is the family grave passed down for generations.
墓石には「奥津城」と刻まれていた。
The gravestone was inscribed with '奥津城'.
墓 is the general word for grave or tomb, while 奥津城 is specifically a Shinto family grave.
From 奥 (oku, 'inner, deep') + つ (archaic possessive particle) + 城 (ki, 'fortress, enclosure'), literally 'deep enclosure'. The spelling 津 (tsu, 'harbor') is ateji for the possessive particle.