noun🔗Share(real analysis): Given a subset X of R, the smallest real number that is ≥ every element of X; : given a subset X of a partially ordered set P (with partial order ≤), the least element y of P such that every element of X is ≤ y."The highest grade anyone achieved on the test was 95, so the supremum of the test scores is 95. "mathlogicabstractChat with AIVocabulary GamePractice Reading