noun
loud recitation of Amida Buddha's name
A Buddhist practice of chanting the nembutsu (念仏) in a loud voice, often in a group or as a special service. Compare with the more general 念仏.
See also: 念仏
お盆には寺で大念仏が行われる。
During Obon, a loud nembutsu chanting is held at the temple.
念仏 is the general term for reciting the Buddha's name, while 大念仏 specifically refers to doing so loudly or in a grand manner.
Compound of 大 (dai, 'great, large') and 念仏 (nenbutsu, 'nembutsu, recitation of the Buddha's name'). The exact historical derivation is uncertain, but it refers to a more emphatic or communal form of nembutsu chanting.