knack, n. talent, aptitude, aptness, forte, gift, genius, endowment; ability, bent, turn for, faculty, capacity, qualification, propensity, readiness, quickness; skill, skillfulness, adroitness, facility, finesse, art; proficiency, competence, dexterity, dexterousness, trick, trick of the trade, Inf. hang,
knapsack, n. backpack, Inf. poke, pocket, pouch, bag, saddlebag, Inf. housewife; kit, war bag, rucksack, haversack, Australian, tucker bag, duffel bag, holdall.
knave, n. 1. scoundrel, blackguard, wretch, dastard, reprobate, cur, dog, Inf. hound, SI. lowlife, Archaic. caitiff, Archaic, coistrel; villain, bad guy or man, snake, viper, reptile, snake in the grass, evildoer, fiend, hellhound, miscreant, devil; rogue, cad, churl, louse, bully, ruffian, brute, abuser, SI. stinker, SI. rat, SI. creep, SI. jerk, SI. bastard, SI. SOB, Obs. stinkard; good-for-nothing, ne'er-do-well, vagabond, black sheep, Inf rip, SI. bum, Chiefly Brit, wastrel, Chiefly Brit. SI. rotter, Chiefly Brit. SI. bounder, Brit. SI. blighter; rascal, scamp, scalawag, rapscallion, scapegrace, bad or naughty boy, picaroon, pettifogger, mischief-maker, troublemaker.
2. traitor, renegade, betrayer, Judas, recreant, sneak, Inf. double-crosser, SI. two-timer; hypocrite, pharisee, deceiver, pretender, dissembler, bluff, bamboozler, Inf. four-flusher; fake, faker, fraud, humbug, masquerader, mountebank, charlatan, imposter, wolf in sheep's clothing, Inf. quack, Inf phony, Australian, bunyip; cheat, cheater, trickster, sharper, sharpie, fox, sly fox, shark, Inf. shyster, confidence man, SI. con man, SI. flim-flam man; crook, U.S. SI. chiseler, swindler, bilker, diddler.
knavery, n. 1. rascality, roguery, roguishness, unscrupulousness, baseness, knavishness; villainy, miscreancy, deviltry, evildoing, wrongdoing, evil ways, dark and crooked ways; mischief, mischievousness, pettifoggery, chicanery, shenanigans, hanky-panky, messing around, SI. funny business, SI. monkey business, SI. monkeyshines.
2. treachery, treason, betrayal, recreance, recreancy, disloyalty; deception, deceit, trickery, fraudulence, fraud, dissimulation, cozenage, dupery; duplicity, double-dealing, talking out of both sides of one's mouth, dishonesty; trickery, guile, wiles, foxiness, craftiness, craft, cunning, artfulness, finesse, hocus-pocus, Inf. razzle-dazzle; cheating, swindling, Inf. dirty pool.
3. trick, stratagem, artifice, pretense, Trojan horse, Obs. cog; wile, subterfuge, misrepresentation, imposture, imposition, Law. cavin; fake, sham, hoax, fraud, humbug, feint, blind; swindle, shuck, Inf flimflam, Inf flam, confidence game or trick, SI. con game.
knavish, adj. 1. rascally, rascal, roguish, blackguardly, dastardly; mischievous, naughty, scampish, waggish; low, base, rotten, stinking, rank, dirty, contemptible, awful, terrible; villainous, nasty, mean, cruel, brutal.
2. unscrupulous, dishonorable, unprincipled, unethical, reprobate, immoral, depraved, corrupt; dishonest, insincere, disingenuous, untruthful, lying, mendacious, hypocritical; deceitful, deceptive, delusive, misleading, dissembling, dissimulative, beguiling, SI. double-crossing, SI. two-timing; treacherous, sneaky, double-dealing, underhanded, cheating, crooked, tortuous; tricky, trickish, sly, shrewd, sharp, cunning, wily, foxy, artful, insidious, subtle, Archaic, tricksy; conniving, collusive, designing, scheming, plotting,
knead, v. work, manipulate, Brit. Dial, ply, press, fold; form, shape, mold; massage, rub, rub down, stroke.