Wordnet polsko-angielski 
                         (having more than one decidedly dissimilar aspects or qualities
"a double (or dual) role for an actor"
"the office of a clergyman is twofold
 public preaching and private influence"- R.W.Emerson
 "every episode has its double and treble meaning"-Frederick Harrison) 
double, dual, twofold, two-fold, treble, threefold, three-fold 
synonim: dwoisty
synonim: dualistyczny
Otwarty słownik polsko-angielski V.9.2007, Copyright (c) Jerzy Kazojć - 2007 r.
                        dichotomous
Nowoczesny słownik polsko-angielski 
                        dichotomic