N. 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, antæus, samson, cyclops, goliath, tower of strength, giant refreshed, strengthening, invigoration, refreshment, refocillation, dynamics, statics

V. 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

Adj. 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

Adv. strongly, by force, by main force

Phr. "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 and sharpens our skill", "inflexible in faith invincible in arms"

N. perseverance, continuance, permanence, firmness, constancy, steadiness, singleness of purpose, tenacity of purpose, persistence, plodding, patience, sedulity, pertinacy|, pertinacity, pertinaciousness, iteration bottom, game, pluck, stamina, backbone, grit, indefatigability, indefatigableness, bulldog courage

V. persevere, persist, hold on, hold out, die in the last ditch, be in at the death, stick to, cling to, adhere to, stick to one's text, keep on, keep to one's course, keep to one's ground, maintain one's course, maintain one's ground, go all lengths, go through fire and water, bear up, keep up, hold up, plod, stick to work, continue, follow up, die in harness, die at one's post

Adj. persevering, constant, steady, steadfast, undeviating, unwavering, unfaltering, unswerving, unflinching, unsleeping, unflagging, undrooping, steady as time, unrelenting, unintermitting, unremitting, plodding, industrious, strenuous, pertinacious, persisting, persistent, solid, sturdy, staunch, stanch, true to oneself, unchangeable, unconquerable, indomitable, game to the last, indefatigable, untiring, unwearied, never tiring

Adv. through evil report and good report, through thick and thin, through fire and water, per fas et nefas, without fail, sink or swim, at any price, vogue la galere

Phr. never say die, give it the old college try, vestigia nulla retrorsum, aut vincer aut mori, la garde meurt et ne se rend pas, tout vient a temps pour qui sait attendre