must-do task

noun
UK /ˌmʌstˈduː tɑːsk/
US /ˌmʌstˈduː tæsk/

A must-do task is something you have to do and cannot skip.

Finishing my homework is a must-do task before I can play.

SYNONYMS

obligationrequirementessential jobnecessary duty

RELATED WORDS

choreprioritydeadlineresponsibility

OTHER MEANINGS

2. A job that is very important to finish first.

Feeding the dog is a must-do task every morning.

3. Something on a checklist that cannot be left out.

Packing your toothbrush is a must-do task for the trip.

4. A duty you are expected to complete.

Cleaning your room is a must-do task on Saturday.