Definition of: observance

(əb·zûr′vəns) noun
1. The act of observing, as a custom or ceremony; compliance, as with law or duty.
2. Any common custom, form, rite, etc.
3. Heedful attention; observation.
4. Eccl. a The rule or constitution of a religious order. b The order, or the house of such an order.
5. Archaic Obsequious compliance. See synonyms under FORM, SACRAMENT. [<OF <L observantia attention, reverence, <observans, -antis, ppr. of observare OBSERVE]