Nouns

(n)binary star, binary, double stara system of two stars that revolve around each other under their mutual gravitation
(n)binary, binary programa pre-compiled, pre-linked program that is ready to run under a given operating system; a binary for one operating system will not run on a different operating system“the same source code can be compiled to produce different binaries for different operating systems”

Adjectives

(a)binaryof or pertaining to a number system have 2 as its base“a binary digit”
(s)binaryconsisting of two (units or components or elements or terms)“a binary star is a system in which two stars revolve around each other”, “a binary compound”, “the binary number system has two as its base”