verb / noun
must
MUST/məst/
A requirement or strong recommendation
The worker must put on a hard hat before entering the construction site.
Etymology
Must comes from a past-tense form of motan, 'have to, be able to.' Using past forms as polite or softened presents helped this form become a present-day expression of obligation.
In context
you could issue an order they must not do it. They could still do it.
More examples
- A warm coat is a must for this trip.
- Visitors must sign in at the desk.
- You must try the bakery's cinnamon rolls.
Forms
must · musts