To refuse or (intentionally) fail to obey an order of (somebody).
To refuse or (intentionally) fail to obey.
To follow or obey the custom, practice, or rules (especially of a religion).
To take note of and celebrate (a holiday or similar occurrence); to follow (a type of time or calendar reckoning).
To notice or view, especially carefully or with attention to detail.
To comment on something; to make an observation.