Search Result for "placeholder": 
Wordnet 3.0

NOUN (2)

1. a person authorized to act for another;
[syn: proxy, placeholder, procurator]

2. a symbol in a logical or mathematical expression that can be replaced by the name of any member of specified set;


WordNet (r) 3.0 (2006):

placeholder n 1: a person authorized to act for another [syn: proxy, placeholder, procurator] 2: a symbol in a logical or mathematical expression that can be replaced by the name of any member of specified set