also: いずもたいしゃきょう
noun
Izumo Oyashiro-kyo; Izumo Taisha-kyo
A Shinto sect based at Izumo Grand Shrine. The reading いずもおおやしろきょう is the traditional sect name; いずもたいしゃきょう is also used.
出雲大社教は、明治時代に成立した神道系の教派です。
Izumo Oyashiro-kyo is a Shinto sect established in the Meiji period.
出雲大社 is the shrine itself, while 出雲大社教 is the religious organization/sect centered on that shrine.
From 出雲 (Izumo, the region) + 大社 (grand shrine) + 教 (teaching/sect). The name refers to the sect based at Izumo Grand Shrine.