Meaning

• To notice or view, especially carefully or with attention to detail.

  "From this vantage point we can observe the behavior of the animals in their natural habitat."

• To follow or obey the custom, practice, or rules (especially of a religion).

  "Please observe all posted speed limits."

• To take note of and celebrate (a holiday or similar occurrence).

• To comment on something; to make an observation.

  "The senator observed that the bill would be detrimental to his constituents."