choose-onerule
nounUK /tʃuːz wʌn ruːl/
US /tʃuːz wʌn rul/
A choose-one rule is a rule that says you can pick only one thing.
The game has a choose-one rule, so each player picks just one card.
OTHER MEANINGS
2. A guideline that allows only a single answer from a list.
On the form, the choose-one rule means you tick only one box.
3. A game rule where a player selects exactly one item before play continues.
Under the choose-one rule, she took the red token and passed the bag on.
4. A design principle that limits users to one selection at a time.
The app follows a choose-one rule, so the buttons work like a radio list.