1. Doubleness; a twofold state. [Archaic]
"Do not affect duplicities nor triplicities, nor any certain number of parts in your division of things." -- I. Watts.
2. Doubleness of heart or speech; insincerity; a sustained form of deception which consists in entertaining or pretending to entertain one set of feelings, and acting as if influenced by another; bad faith.
"Far from the duplicity wickedly charged on him, he acted his part with alacrity and resolution." -- Burke.
3. (Law) (a) The use of two or more distinct allegations or answers, where one is sufficient. Blackstone. (b) In indictments, the union of two incompatible offenses. Wharton.
Syn. -- Double dealing; dissimulation; deceit; guile; deception; falsehood.