bulldog

• POS: Noun
• HYPHEN: bull=dog

CIDE DICTIONARY

bulldog, n. 

•  A variety of dog, of remarkable ferocity, courage, and tenacity of grip; -- so named, probably, from being formerly employed in baiting bulls.  [1913 Webster]
•  A refractory material used as a furnace lining, obtained by calcining the cinder or slag from the puddling furnace of a rolling mill.  [1913 Webster]

bulldog, a. 

 Characteristic of, or like, a bulldog; stubborn; as, bulldog courage; bulldog tenacity.  [1913 Webster]

Bulldog bat (Zo'94l.), a bat of the genus Nyctinomus; -- so called from the shape of its face.

OXFORD DICTIONARY

bulldog, n.
1 a a dog of a sturdy powerful breed with a large head and smooth hair. b this breed.
2 a tenacious and courageous person.

Idiom

bulldog ant Austral. a large ant with a powerful sting. bulldog clip a strong sprung clip for papers.

THESAURUS

bulldog

Achilles, David, Hector, Roland, Samson, a man, adherent, adhesive, barnacle, bramble, brave, brier, burr, cement, chutzpanik, decal, decalcomania, decorated hero, demigod, demigoddess, fighting cock, gallant, gamecock, glue, good soldier, gunk, hero, heroine, leech, limpet, lion, man of courage, molasses, mucilage, paladin, paste, plaster, prickle, remora, stalwart, sticker, syrup, the brave, thorn, tiger, valiant, valiant knight

ROGET THESAURUS

bulldog

Resolution

N resolution, determination, will, iron will, unconquerable will, will of one's own, decision, resolution, backbone, clear grit, true grit, grit, sand, strength of mind, strength of will, resolve, firmness, energy, manliness, vigor, game, pluck, resoluteness, zeal, aplomb, desperation, devotion, devotedness, mastery over self, self control, self command, self possession, self reliance, self government, self restraint, self conquest, self denial, moral courage, moral strength, perseverance, tenacity, obstinacy, bulldog, British lion, resolved, determined, strong-willed, strong-minded, resolute, self-possessed, decided, definitive, peremptory, tranchant, unhesitating, unflinching, unshrinking, firm, iron, gritty, indomitable, game to the backbone, inexorable, relentless, not to be shaken, not to be put down, tenax propositi, inflexible, obstinate, steady, earnest, serious, set upon, bent upon, intent upon, steel against, proof against, in utrumque paratus, resolutely, in earnest, in good earnest, seriously, joking apart, earnestly, heart and soul, on one's mettle, manfully, like a man, with a high hand, with a strong hand, at any rate, at any risk, at any hazard, at any price, at any cost, at any sacrifice, at all hazards, at all risks, at all events, a' bis ou a blanc, cost what it may, coute, a tort et a travers, once for all, neck or nothing, rain or shine, spes sibi quisque, celui qui veut celui-la peut, chi non s'arrischia non guadagna, frangas non flectes, manu forti, tentanda via est.

Courage

N 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.