two-option decision

noun phrase
UK /tuː ɒpʃən dɪˈsɪʒən/
US /tuː ɑːpʃən dɪˈsɪʒən/

A choice where you can pick only one of two things.

Choosing between pizza and burgers for dinner was a two-option decision.


OTHER MEANINGS

2. A situation in which only two possible courses of action are available.

The committee faced a two-option decision: approve the plan or reject it.

3. A decision-making process limited to two alternatives, often used in logic or computing.

The program uses a two-option decision to branch left or right.

4. A forced choice between two mutually exclusive outcomes.

Voters had a two-option decision on the ballot: yes or no.