binary
adjectiveUK /ˈbaɪ.nər.i/
US /ˈbaɪ.nɚ.i/
Something binary has only two parts or choices.
The computer stores information in binary code using just zeros and ones.
OTHER MEANINGS
2. A number system that uses only the digits 0 and 1.
The machine reads the file as binary.
3. Made of or involving two things that are opposites.
The question was framed as a binary choice: yes or no.
4. A star system made of two stars that orbit each other.
Astronomers studied the binary to learn how the two stars move.