yes-nohelper
nounUK /ˌjesˈnəʊ ˈhelpə/
US /ˌjesˈnoʊ ˈhelpər/
A yes-no helper is a little word that helps you ask a question you can answer with yes or no.
In the question 'Do you like apples?', the word 'do' is a yes-no helper.
OTHER MEANINGS
2. A person or tool that helps someone give a yes or no answer.
The teacher used a yes-no helper chart to let the kids vote.
3. A small card or button used to answer a question with yes or no.
Each student held up a yes-no helper to show their choice.
4. A feature in a game or app that lets you pick between yes and no.
The app has a yes-no helper so kids can answer easily.