Search Result for "bigram": 
Wordnet 3.0

NOUN (1)

1. a word that is written with two letters in an alphabetic writing system; 



The Collaborative International Dictionary of English v.0.48:

bigram \bigram\ n.
   a word that is written with two letters in an alphabetic
   writing system.
   [WordNet 1.5]


WordNet (r) 3.0 (2006):

bigram
    n 1: a word that is written with two letters in an alphabetic
         writing system