1. (n.) Strength to resist attack; endurance; courage\.

2. (n.) That strength or firmness of mind which enables a person to encounter danger with coolness and courage, or to bear pain or adversity without murmuring, depression, or despondency; passive courage; resolute endurance; firmness in confronting or bearing up against danger or enduring trouble.

acceptance backbone boldness bottom bravery bulldog courage cardinal virtues charity constancy courage courageousness dauntlessness decisiveness determination endurance energy faith fearlessness fixity of purpose forbearance forbearing forbearingness force gameness gaminess grit grittiness guts gutsiness hardihood hardiness heartiness hope indulgence intestinal fortitude intrepidity iron will justice lenience leniency long-sufferance long-suffering longanimity love lustihood lustiness mettle mettlesomeness might mightiness moral courage moral fiber natural virtues nerve nerviness obstinacy patience patience of Job patientness perseverance pertinaciousness pertinacity pith pluckiness potency power powerfulness prudence resoluteness resolution robustness ruggedness sand self-control spirit spunk spunkiness stalwartness stamina staying power stick-to-itiveness sticking power stoicism stoutness strength strength of mind strength of purpose strength of will sturdiness sufferance supernatural virtues sweet reasonableness temperance tenaciousness tenacity theological virtues tolerance toleration toughness valiancy valor valorousness vigor vigorousness vitality waiting game waiting it out will will of iron will power