thinking cap thinking • thinkingly · · · Info · Definitions · Characters · · thinking cap · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a state in which one thinks. Synonyms: thinking cap. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 k latin small letter k U+006B n latin small letter n U+006E p latin small letter p U+0070 t latin small letter t U+0074