must-have
adjectiveUK /ˈmʌst hæv/
US /ˈmʌst hæv/
Something you really need to have.
A warm coat is a must-have for winter.
RELATED WORDS
OTHER MEANINGS
2. Something that is very popular and everyone wants it.
This new phone is a must-have gadget this year.
3. A thing you cannot do without in a certain situation.
Sunscreen is a must-have at the beach.
4. A fashionable item that many people feel they should own.
The designer bag became a must-have for fashion fans.