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.
To withstand the actions of.
To oppose; to refuse to accept.
To attempt to counter the actions or effects of.
A protective coating or covering.