sq in sq ft • sql · · · Info · Definitions · Synonyms · Characters · · sq in · · Text Common · · Latin · · Scripts 5 · · Length 2 · · Syllables Definitions · · · (noun) a unit of area equal to one inch by one inch square. Synonyms: square inch, sq in. · · Noun Definition 1 Synonyms · · · square inch · · Synonym 1 Characters · · space U+0020 i latin small letter i U+0069 n latin small letter n U+006E q latin small letter q U+0071 s latin small letter s U+0073