bool noun 1verb 1forms 3 noun1 •A Boolean variable (one whose value is either true or false).The base class BitArray acts just like a normal C++ array of bools, although you are of course free to interpret the bits as integers […] — 2000 verb1 •(slang) To relax or hang out (especially with someone).I'm going to go bool with the boys. formsbooled · booling · bools