noun
wake; all-night vigil over a body
Polite term for the Buddhist wake held the night before a funeral, where family and friends gather to spend the night with the deceased.
See also: 通夜
祖母のお通夜にはたくさんの人が来てくれた。
Many people came to my grandmother's wake.
お通夜は午後六時から始まります。
The wake will begin at 6 p.m.
Same meaning but without the honorific prefix お; less polite and more direct.
From 通夜 (つや, 'all-night vigil') with the polite prefix お added.