Synonyms and related words :
aggressiveness, animation, bang, birr, breeziness, briskness, bubbliness, dash, drive, ebullience, effervescence, energy, enterprise, fire, get-up-and-go, getup, ginger, go, hardihood, initiative, kick, life, liveliness, moxie, pepper, peppiness, piquancy, piss and vinegar, pizzazz, poignancy, poop, potency, punch, pungency, push, raciness, snap, sparkle, spirit, spiritedness, sprightliness, spunk, starch, thrust, tuck, verve, vigor, vim, vitality, vivaciousness, vivacity, vividness, zing, zip