a must

That which is requisite, necessary, or indispensable. I know this book is a difficult read, but it's an absolute must if you enjoy literature. Taking the introductory course is a must if you want to sign up for the advanced class.

a must

A necessity; a requirement. For example, The Louvre is a must for visitors to Paris, or This book is a must for serious students of English. [Late 1800s]

a must

verb

See a must do

Common Names:

Name	Pronounced	Usage
Zsigmond	-	Hungarian
Frieda	['fri:də]
Ping	-	Chinese
Meadow	MED-o	English (Modern)
TÁHirih	-	History
Nolene	-	English (Rare)