From WordNet (r) 3.0 (2006): guts n 1: fortitude and determination; "he didn't have the guts to try it" [syn: backbone, grit, guts, moxie, sand, gumption]
guts n 1: fortitude and determination; "he didn't have the guts to try it" [syn: backbone, grit, guts, moxie, sand, gumption]