surface area surface anatomy • surface assimilation · · · Info · Definitions · Synonyms · Characters · · surface area · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) the extent of a 2-dimensional surface enclosed within a boundary. Synonyms: area, expanse, surface area. Examples: "The area of a rectangle." "It was about 500 square feet in area." · · Noun Definition 1 Synonyms · · · area · · Synonym 1 expanse · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075