must-know facts

noun phrase

UK /ˌmʌstˈnəʊ fækts/

US /ˌmʌstˈnoʊ fækts/

Facts that are so important you really need to learn them.

The teacher gave us a list of must-know facts about the solar system.

SYNONYMS

essential facts key facts vital information basic facts important facts

RELATED WORDS

knowledge information trivia essentials basics

OTHER MEANINGS

2. The most important things to remember about a subject.

Here are the must-know facts before your first day at the new job.

3. A short list of key points used for quick review.

She made a must-know facts sheet for the exam.

4. Things everyone in a group is expected to know.

Safety rules are must-know facts for every lifeguard.