Meaning of “minimum” - Learner’s Dictionary

minimum

adjective [ always before noun ] us uk /ˈmɪnɪməm/

B1 The minimum amount of something is the smallest amount that is allowed, needed, or possible:

How much is the minimum wage?
There is a minimum charge of $5 for postage.
→ Opposite maximum adjective

More examples

(Definition of “minimum adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)