n.

1. 遵守，奉行[U]
   observance of speed limits and traffic lights

   遵守车速规定和交通信号

2. （节日、生日等的）纪念，庆祝[C]
3. 礼仪，仪式[C]
   religious observances

   宗教仪式

4. 注意，观察[U]

n.

1. the practice of observing the requirements of law, morality, or ritual.
2. (usu. observances) an act performed for religious or ceremonial reasons.
   ▸a rule to be followed by a religious order.
3. archaic respect; deference.