Synonyms for Spunk:

n.

bollocks, beaver, cojones, cervix, cervical, bits. gameness, spunkiness, Doughtiness, gutsiness, fear, intrepidness, nobility, stoutheartedness, gut, bravado, valor, undauntedness, gallantry, valiantness, daring, heroics, valiancy, pluckiness. bravery (noun)
valor, fearlessness, indomitability.
courage (noun)
courage, valiance, pluck, fearlessness, boldness, sand, heroism, mettle, courageousness, audacity, nerve, Braveness, bravery, stoutness, backbone, fortitude, moxie, intrepidity.
courage, nerve (noun)
determination, gameness, spirit, fortitude, backbone, pluck, grit, resolution, toughness, moxie, mettle.
energy (noun)
vim, energy, vivacity, zeal, spirit, vigor, power, might, stamina, strength, activity, pep, effervescence, spark, fire, puissance, fervor, potency, drive, force, zip, zing, verve, snap.
perseverance (noun)
determination, indefatigability.
resolution (noun)
tirelessness, determination, toughness, trueness, resolution, tenacity, indefatigability, fervency, staunchness, steadfastness, bullheadedness, grit, decisiveness, persistence, diligence, indomitability, devotion, heartiness, dauntlessness, faithfulness, Stoniness, Headstrongness, stubbornness, perseverance.
spunk (noun)
touchwood, tinder, heart, punk, nerve, kindling, mettle.

Other synonyms:

pluckiness, stoutheartedness, valiantness, gutsiness, spunkiness, Doughtiness, undauntedness, intrepidness, gameness, valiancy. valor, gallantry, gut. Other relevant words:
heart, tinder, valor, intrepidness, undauntedness, stoutheartedness, punk, daring, valiancy, valiantness, gallantry, gameness, touchwood, gutsiness, pluckiness, Doughtiness, spunkiness, gut, kindling.

Usage examples for spunk

  1. They haven't spunk enough to believe what they know. – The Desire of the Moth; and The Come On by Eugene Manlove Rhodes
  2. I like your spunk said Paul, heartily. – Phil the Fiddler by Horatio Alger, Jr.