1. The act of following or complying with a rule, law, custom, or religious practice
The observance of traffic laws is mandatory.
A observância das leis de trânsito é obrigatória.
2. Careful attention to or respect for something
Strict observance of the contract terms is required.
A observância rigorosa dos termos do contrato é exigida.
3. A religious ceremony, rite, or practice
The observance of Sabbath is important in Judaism.
A observância do Sabá é importante no Judaísmo.