The meaning of MAXIMUM is the greatest quantity or value attainable or attained.

MAXIMUM definition: the greatest quantity or amount possible, assignable, allowable, etc. See examples of maximum used in a sentence.

/ ˈmæk·sə·məm / Add to word list being the largest amount or number allowed or possible: a maximum penalty / sentence

If you say that something is a particular amount maximum, you mean that this is the greatest amount it should be or could possibly be, although a smaller amount is acceptable or very possible.

1. the highest amount, value, or degree attained or attainable. 2. an upper limit allowed by law or regulation.

Definition of maximum noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

the highest amount, value, or degree that can be reached: At a maximum, we have twenty students in each class. an upper limit allowed by regulation: raising the maximums of permitted imports.

Maximum definition: An upper limit permitted by law or other authority.

There are eight meanings listed in OED's entry for the word maximum, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Mar 14, 2026 · (mathematics) The greatest value of a set or other mathematical structure, especially the global maximum or a local maximum of a function. (mathematical analysis) An upper bound of a set …