modal verb
- used to express necessity or obligation
- used to express strong probability or certainty
- used to express a strong recommendation or advice
noun
- something that is necessary or required
Examples
- You must finish your homework before watching TV.
- Students must arrive on time for the exam.
- She must be tired after working all day.
- That must be the correct answer.
- You must try this restaurant – the food is amazing!
- A good dictionary is a must for language learners.
- Comfortable shoes are a must for hiking.
- This book is a must-read for history students.