gumption
     n 1: sound practical judgment; "I can't see the sense in doing it
          now"; "he hasn't got the sense God gave little green
          apples"; "fortunately she had the good sense to run
          away" [syn: {common sense}, {good sense}, {horse sense},
           {sense}, {mother wit}]
     2: fortitude and determination; "he didn't have the guts to try
        it" [syn: {backbone}, {grit}, {guts}, {moxie}, {sand}]
Source: WordNet® 2.0