a professor or minister who is retired from assigned duties
honorably retired from assigned duties and retaining your title along with the additional title `emeritus' as in `professor emeritus'; `retired from assigned duties' need not imply that one is inactive
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose; "my invaluable assistant"; "they hired additional help to finish the work"
someone who climbs as a sport; especially someone who climbs mountains; "the lead climber looked strong still but his partner often slumped in his ropes"
a vine or climbing plant that readily grows up a support or over other plants