[ˈbʌɪn(ə)ri], (Adjective)

Definitions:
- relating to, composed of, or involving two things

- relating to, using, or denoting a system of numerical notation that has 2 rather than 10 as a base


Phrases:

Origin:
late Middle English (in the sense ‘duality, a pair’): from late Latin binarius, from bini ‘two together’

[ˈbʌɪn(ə)ri], (Noun)

Definitions:
- the binary system of notation
(e.g: the device is counting in binary)

- something having two parts


Phrases:

Origin:
late Middle English (in the sense ‘duality, a pair’): from late Latin binarius, from bini ‘two together’