To notice or view, especially carefully or with attention to detail.
To take note of and celebrate (a holiday or similar occurrence); to follow (a type of time or calendar reckoning).
To comment on something; to make an observation.
To follow or obey the custom, practice, or rules (especially of a religion).
To look on or look at; watch; observe; view; regard.
The act of looking on (something); observation.
One's perspective or outlook.
That which is looked at, regarded, or considered.