noun Date: 13th century 1. a customary practice, rite, or ceremony , a rule governing members of a religious order, an act or instance of following a custom, rule, or law , an act or instance of watching
OBSERVANCE
Meaning of OBSERVANCE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012