Wordnet 3.0
NOUN (1)
1. 
 a pair of people who live together; 
- Example: "a married couple from Chicago"[syn: couple, mates, match]
WordNet (r) 3.0 (2006):
mates
    n 1: a pair of people who live together; "a married couple from
         Chicago" [syn: couple, mates, match]