upper limit upper-level • upper-lower-class · · · Info · Definitions · Synonyms · Characters · · upper limit · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) the largest possible quantity. Synonyms: maximum, upper limit. · · Noun Definition 1 (noun) the limit on the upper (or northernmost) side of something. Synonyms: upper limit. · · Noun Definition 2 Synonyms · · · maximum · · Synonym 1 Characters · · space U+0020 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075