must-have
adjective [ before noun ]
ukusa must-have product is a fashionable one that a lot of people want to own:
a must-have accessory/gadget/item The device soon became a must-have accessory for anyone in the business world.
must-have
noun [ C ]
ukusa fashionable product that a lot of people want to own:
be a must-have for sb It's this year's must-have for children.