traditional Japanese wedding ceremony (usu. at a shrine or temple)
Refers specifically to a Shinto-style wedding, often held at a shrine, as opposed to a Western-style chapel wedding or a civil ceremony.
They held a traditional Shinto wedding ceremony at a shrine.
Compound of 神前 (shinzen, 'before the gods') + 式 (shiki, 'ceremony'). The term straightforwardly describes a ceremony performed in the presence of Shinto deities.