Sentence:  The first pretrial conference - held to appoint amici curiae to <WSD>represent</WSD> the interest of the stockholders of du Pont and General Motors and to consider the procedure to be followed in the subsequent hearings - took place on September 25 , 1957 . 
Meaning of the word marked with <WSD> tags:  be a delegate or spokesperson for; represent somebody's interest or be a proxy or substitute for, as of politicians and office holders representing their constituents, or of a tenant representing other tenants in a housing dispute