n.
Pronunciation: ə b- ' z ə r-v ə n(t)s
Function: noun
Date: 13th century
1 a : a customary practice, rite, or ceremony <Sabbath observance s > b : a rule governing members of a religious order
2 : an act or instance of following a custom, rule, or law < observance of the speed limits>
3 : an act or instance of watching