Of a person. Holding a title, office, or position conferred as an honour, without payment, or without the usual duties, obligations, privileges…

Of a person: doing a job nominally shared with another or others who may not have an active role; (also) temporarily doing the job or duties of…

Of a post or salary: that entitles the holder to a pension or superannuation, or from which a contribution to this may be payable.