afferent neuron, animate, annoy, anxiety, aplomb, apprehension, assurance, assure, audacity, autonomic nervous system, axon, backbone, balance, balanced personality, balls, beef up, boldness, bolster, bottle, bottom, brace, brace up, brain, brashness, brass, bravery, brazenness, buck up, buttress, case harden, central nervous system, cerebral cortex, cheek, cheer, chirk up, chutzpah, confidence, confirm, constancy, cool, coolness, courage, craniosacral nervous system, crust, daring, dauntlessness, dendrite, determination, doughtiness, effector organ, efferent neuron, effrontery, embolden, encourage, equilibrium, face, fastness, fearlessness, firmness, fortify, fortitude, forwardness, fretfulness, fright, gall, ganglion, gird, gray matter, grit, gumption, guts, gutsiness, guttiness, harden, hardihood, hardiness, heart, heart of oak, hearten, homeostasis, hysteria, impertinence, imperturbability, importunacy, importunateness, impudence, insolence, inspire, inspirit, internuncial neuron, intestinal fortitude, intrepidity, invariability, invigorate, irritate, medullary sheath, mettle, moxie, nerve
trunk, nerves, nervous system, nervousness, neuron, peripheral nervous system, pith, plexus, pluck, presumption, presumptuousness, prop, pushiness, reassure, refresh, reinforce, reinvigorate, reliability, resoluteness, restrengthen, rootedness, sand, sang-froid, sauce, secureness, security, self-assertion, self-assertiveness, self-expression, self-expressiveness, sensorium, sensory area, sensory cell, shore up, solar plexus, solidity, soundness, spinal cord, spirit, spunk, stability, stable equilibrium, stable state, stamina, staunchness, steadfastness, steadiness, steady nerves, steady state, steel, stiffen, stout heart, strengthen, stress, substantiality, support, sustain, synapse, temerity, temper, tenacity, tension, the heebie-jeebies, thoracolumbar nervous system, toughen, toughness, undeflectability, undergird, uniformity, unshakable nerves, unshakableness, upset, valor, white matter, will, worry
strength, power, energy, vigor, force, main force, physical force, brute force, spring, elasticity, tone, tension, tonicity, stoutness, lustihood, stamina, nerve
, muscle, sinew, thews and sinews, physique, pith, pithiness, virtility, vitality, athletics, athleticism, gymnastics, feats of strength, adamant, steel, iron, oak, heart of oak, iron grip, grit, bone, athlete, gymnast, acrobat, superman, Atlas, Hercules, Antaeus, Samson, Cyclops, Goliath, tower of strength, giant refreshed, strengthening, invigoration, refreshment, refocillation, dynamics, statics, strong, mighty, vigorous, forcible, hard, adamantine, stout, robust, sturdy, hardy, powerful, potent, puissant, valid, resistless, irresistible, invincible, proof against, impregnable, unconquerable, indomitable, dominating, inextinguishable, unquenchable, incontestable, more than a match for, overpowering, overwhelming, all powerful, all sufficient, sovereign, able-bodied, athletic, Herculean, Cyclopean, Atlantean, muscular, brawny, wiry, well-knit, broad-shouldered, sinewy, strapping, stalwart, gigantic, manly, man-like, manful, masculine, male, virile, unweakened, unallayed, unwithered, unshaken, unworn, unexhausted, in full force, in full swing, in the plenitude of power, stubborn, thick-ribbed, made of iron, deep-rooted, strong as a lion, strong as a horse, strong as an ox, strong as brandy, sound as a roach, in fine feather, in high feather, built like a brick shithouse, like a giant refreshed, strongly, by force, by main force, our withers are unwrung, Blut und Eisen, coelitus mihi vires, du fort au diable, en habiles gens, ex vi termini, flecti non frangi, he that wrestles with us strengthens our nerves an, inflexible in faith invincible in arms.
be strong, be stronger, overmatch, render strong, give strength, strengthen, invigorate, brace, nerve
, fortify, sustain, harden, case harden, steel, gird, screw up, wind up, set up, gird up one's loins, brace up one's loins, recruit, set on one's legs, vivify, refresh, refect, reinforce, reenforce.
courage, bravery, valor, resoluteness, boldness, spirit, daring, gallantry, intrepidity, contempt of danger, defiance of danger, derring-do, audacity, rashness, dash, defiance, confidence, self-reliance, manliness, manhood, nerve
, pluck, mettle, game, heart, heart of grace, spunk, guts, face, virtue, hardihood, fortitude, intestinal fortitude, firmness, heart of oak, bottom, backbone, spine, resolution, bulldog courage, prowess, heroism, chivalry, exploit, feat, achievement, heroic deed, heroic act, bold stroke, man, man of mettle, hero, demigod, Amazon, Hector, lion, tiger, panther, bulldog, gamecock, fighting-cock, bully, fire eater, courageous, brave, valiant, valorous, gallant, intrepid, spirited, spiritful, high-spirited, high-mettled, mettlesome, plucky, manly, manful, resolute, stout, stout-hearted, iron-hearted, lion-hearted, heart of oak, Penthesilean, bold, bold-spirited, daring, audacious, fearless, dauntless, dreadless, aweless, undaunted, unappalled, undismayed, unawed, unblanched, unabashed, unalarmed, unflinching, unshrinking, unblanching, unapprehensive, confident, self-reliant, bold as a lion, bold as brass, enterprising, adventurous, venturous, venturesome, dashing, chivalrous, soldierly, heroic, fierce, savage, pugnacious, strong-minded, hardy, doughty, firm, determined, dogged, indomitable, up to, up to the scratch, upon one's mettle, reassured, unfeared, undreaded, one's blood being up, courage sans peur, fortes fortuna adjuvat, have I not in my time heard lions roar, I dare do all that may become a man, male vincetis sed vincite, omne solum forti patria, self-trust is the essence of heroism, stimulos dedit oemula virtus, strong and great, a hero, teloque animus proestantior omni, there, is always safety in valor, virtus ariete fortier.
be courageous, dare, venture, make bold, face danger, front danger, affront danger, confront danger, brave danger, defy danger, despise danger, mock danger, look in the face, look full in the face, look boldly in the face, look danger in the face, face, meet, meet in front, brave, beard, defy, take courage, muster courage, summon up courage, pluck up courage, nerve
oneself, take heart, take heart, pluck up heart of grace, hold up one's head, screw one's courage to the sticking place, come up to scratch, stick to one's guns, standfire, stand against, bear up, bear up against, hold out, put a bold face upon, show a bold front, present a bold front, show fight, face the music, bell the cat, take the bull by the horns, beard the lion in his den, march up to the cannon's mouth, go through fire and water, run the gantlet, give courage, infuse courage, inspire courage, reassure, encourage, embolden, inspirit, cheer, nerve
, put upon one's mettle, rally, raise a rallying cry, pat on the back, make a man of, keep in countenance.