Above average in size or number or quantity or magnitude or extent:
— Set out for the big city.
— A big (or large) barn.
— Big businesses.
— A big expenditure.
— A big group of scientists.

synonym: large.

Roget 194: expanded, etc. v.; larger, etc. (large) etc. 192; swollen; expansive; wide open, wide spread; flabelliform^†; overgrown, exaggerated, bloated, fat, turgid, tumid, hypertrophied, dropsical; pot bellied, swag bellied^†; edematous, oedematous^†, obese, puffy, pursy^†, blowzy, bigswoln^†, distended; patulous; bulbous etc. (convex) 250; full blown, full grown, full formed; big etc. 192; abdominous^†, enchymatous^†, rhipidate^†; tumefacient^†, tumefying^†.    ... show more

Polish: duży, niemały

Significant.

Polish: większy, znaczny, niemały, znaczący, niekiepski, duży

Very intense:
— In a big rage.
— Had a big (or bad) shock.

synonym: bad.

Loud and firm.

Conspicuous in position or importance:
— A big figure in the movement.
— Big man on campus.

synonyms: large, prominent.

Prodigious:
— Big spender.
— Big eater.

synonym: heavy.

Exhibiting self-importance:
— Big talk.

synonyms: boastful, braggart, bragging, braggy, cock-a-hoop, crowing, self-aggrandising, self-aggrandizing.

Polish: pyszałkowaty

Feeling self-importance:
— Too big for his britches.

synonyms: swelled, vainglorious.

of animals Fully developed.

synonyms: adult, full-grown, fully grown, grown, grownup.

Marked by intense physical force.

Generous and understanding and tolerant:
— A heart big enough to hold no grudges.
— That's very big of you to be so forgiving.

synonyms: large, magnanimous.

Polish: wspaniałomyślny, wielkoduszny

Given or giving freely:
— Was a big tipper.

synonyms: bighearted, bounteous, bountiful, freehanded, giving, handsome, liberal, openhanded.

In an advanced stage of pregnancy:
— Was big with child.

synonyms: enceinte, expectant, gravid, great, heavy, large, with child.

Roget 192: large, big; great etc. (in quantity) 31; considerable, bulky, voluminous, ample, massive, massy; capacious, comprehensive; spacious etc. 180; mighty, towering, fine, magnificent.    corpulent, stout, fat, obese, plump, squab, full, lusty, strapping, bouncing; portly, burly, well-fed, full-grown; corn fed, gram fed; stalwart, brawny, fleshy; goodly; in good case, in good condition; in condition; chopping, jolly; chub faced, chubby faced.    lubberly, hulky, unwieldy, lumpish, gaunt, spanking, whacking, whopping, walloping, thumping, thundering, hulking; overgrown; puffy etc. (swollen) 194.    huge, immense, enormous, mighty; vast, vasty; amplitudinous, stupendous; monster, monstrous, humongous, monumental; elephantine, jumbo, mammoth; gigantic, gigantean, giant, giant like, titanic; prodigious, colossal, Cyclopean, Brobdingnagian, Bunyanesque, Herculean, Gargantuan; infinite etc. 105.    large as life; plump as a dumpling, plump as a partridge; fat as a pig, fat as a quail, fat as butter, fat as brawn, fat as bacon.    immeasurable, unfathomable, unplumbed; inconceivable, unimaginable, unheard-of.    of cosmic proportions; of epic proportions, the mother of all, teh granddaddy of all.    ... show more

Roget 31: great; greater etc. 33; large, considerable, fair, above par; big, huge etc. (large in size) 192; Herculean, cyclopean; ample; abundant; etc. (enough) 639 full, intense, strong, sound, passing, heavy, plenary, deep, high; signal, at its height, in the zenith.    world-wide, widespread, far-famed, extensive; wholesale; many etc. 102.    goodly, noble, precious, mighty; sad, grave, heavy, serious; far gone, arrant, downright; utter, uttermost; crass, gross, arch, profound, intense, consummate; rank, uninitiated, red-hot, desperate; glaring, flagrant, stark staring; thorough-paced, thoroughgoing; roaring, thumping; extraordinary.   ; important etc. 642; unsurpassed etc. (supreme) 33; complete etc. 52.    august, grand, dignified, sublime, majestic etc. (repute) 873.    vast, immense, enormous, extreme; inordinate, excessive, extravagant, exorbitant, outrageous, preposterous, unconscionable, swinging, monstrous, overgrown; towering, stupendous, prodigious, astonishing, incredible; marvelous etc. 870.    unlimited etc. (infinite) 105; unapproachable, unutterable, indescribable, ineffable, unspeakable, inexpressible, beyond expression, fabulous.    undiminished, unabated, unreduced^†, unrestricted.    absolute, positive, stark, decided, unequivocal, essential, perfect, finished.    remarkable, of mark, marked, pointed, veriest; noteworthy; renowned.    ... show more

Extremely well.

In a boastful manner:
— He talked big all evening.

synonyms: boastfully, large, vauntingly.

On a grand scale.

In a major way.