binary choice
nounUK /ˈbaɪ.nər.i tʃɔɪs/
US /ˈbaɪ.nɚ.i tʃɔɪs/
A binary choice is a decision where you can only pick one of two things.
Choosing between yes and no is a binary choice.
RELATED WORDS
OTHER MEANINGS
2. A question that can only be answered with one of two possible responses.
The survey asked a binary choice question: do you agree or disagree?
3. In computing, a selection between exactly two states, such as true or false.
The program stores the setting as a binary choice between on and off.
4. A situation that forces someone to choose between two opposing sides.
Voters faced a binary choice between the two candidates.