That which is to be observed.
The practice of complying with a law, custom, command or rule.
Observation or the act of watching.
A rule governing a religious order, especially in the Roman Catholic church.
The custom of celebrating a holiday or similar occasion.
Reverence; homage.
A place where stars, planets and other celestial bodies are observed, usually through a telescope; also place for observing meteorological or other natural phenomena.
A lookout (vantage point with a view of the surrounding area)