plane figure plane-faced • plane geometry · · · Info · Definitions · Synonyms · Characters · · plane figure · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a two-dimensional shape. Synonyms: plane figure, two-dimensional figure. · · Noun Definition 1 Synonyms · · · two-dimensional figure · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 u latin small letter u U+0075