DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   stand in
       v 1: be a substitute; "The young teacher had to substitute for
            the sick colleague"; "The skim milk substitutes for cream--
            we are on a strict diet" [syn: substitute, sub, stand
    in, fill in]