Definition of "observe" in English

verb

1. (transitive) 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.
   • She got up before dawn to observe the lunar eclipse.

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

   • Please observe all posted speed limits.

3. (transitive) To take note of and celebrate (a holiday or similar occurrence), to keep; to follow (a type of time or calendar reckoning).

   • On Sunday, most of Canada will observe daylight time and spring forward an hour in order to reflect the increasing sunlight.

4. (intransitive) To comment on something; to make an observation.

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

noun

1. (archaic) An observation (remark, comment or judgement).