German tinder, adventuresomeness, adventurousness, aggression, aggressiveness, amadou, ambitiousness, backbone, bang, bottle, bottom, chutzpah, courage, dash, dauntlessness, doggedness, drive, dynamism, enterprise, enterprisingness, fire, force, forcefulness, gameness, get-up-and-get, get-up-and-go, getup, ginger, go-ahead, go-getting, go-to-itiveness, go, grit, gumption, guts, gutsiness, guttiness, heart, heart of oak, hustle, initiative, intestinal fortitude, kick, marrow, mettle, mettlesomeness, moxie, nerve, pep, pepper, piss and vinegar, pith, pizzazz, pluck, pluckiness, poop, punch, punk, push, pushfulness, pushiness, pushingness, pyrotechnic sponge, resolution, resolve, sand, snap, spirit, spunkiness, stamina, starch, stout heart, thrust, tinder, tinder fungus, tinderbox, touchwood, toughness, true grit, up-and-comingness, venturesomeness, venturousness, verve, vim, zing, zip