large, as in size, height, width, or amount

a big house; a big quantity.

of major concern, importance, gravity, or the like

a big problem.

outstanding for a specified quality

a big liar; a big success.

important, as in influence, standing, or wealth

a big man in his field.

grown-up; mature

big enough to know better.

elder

my big sister.

doing business or conducted on a large scale; major in size or importance

big government.

consisting of the largest or most influential companies in an industry

Big steel wants to lower prices, but the smaller mills don't.

Informal . known or used widely; popular

Nouvelle cuisine became big in the 1970s.

magnanimous; generous; kindly

big enough to forgive.

boastful; pompous; pretentious; haughty

a big talker.

loud; orotund

a big voice.

(of clothing or a clothing design) made of or distinguished by voluminous fabric that is loosely or softly shaped and fitted

a big shirt; the big look.

(of a wine) having more than average flavor, body, and alcoholic content.

filled; brimming

eyes big with tears.

Chiefly South Midland and Southern U.S. pregnant.

Obsolete . very strong; powerful.

Informal . boastfully; pretentiously

to act big; to talk big.

Informal . with great success; successfully

to go over big.

the bigs, Sports Slang . the highest level of professional competition, as the major leagues in baseball. ?

be big on

to have a special liking or enthusiasm for

Mother is big on family get-togethers.

big with child. great ( def. 23 ) .

adjective

itsy , little , small , tiny , blah , bland , dull , unimportant , adolescent , baby , babyish , infant , infantile , juvenile , selfish , ungenerous , ungiving , humble , shy , unconfident

adjective

ample , awash , a whale of a , brimming , bulky , bull * , burly , capacious , chock-full * , colossal , commodious , considerable , copious , crowded , enormous , extensive , fat , full , gigantic , heavy-duty , heavyweight , hefty , huge , hulking , humongous * , husky , immense , jumbo , mammoth , massive , mondo , monster * , oversize , packed , ponderous , prodigious , roomy , sizable , spacious , strapping , stuffed , substantial , super colossal , thundering , tremendous , vast , voluminous , walloping , whopper , whopping , big league * , big-time , consequential , eminent , influential , leading , main , major league , material , meaningful , momentous , paramount , popular , powerful , prime , principal , prominent , serious , significant , super , valuable , weighty , adult , elder , full-grown , grown-up , mature , tall , altruistic , benevolent , bighearted , chivalrous , considerate , free , gracious , greathearted , heroic , liberal , lofty , magnanimous , noble , princely , unselfish , arty , boastful , bragging , conceited , flamboyant , haughty , high-sounding , imperious , imposing , inflated , overblown , pompous , presumptuous , pretentious , proud , good , great , healthy , large , large-scale , developed , full-blown , full-fledged , grown , ripe , enceinte , expectant , expecting , gravid , parturient , brimful , overflowing , historic , monumental , big-hearted , great-hearted , large-hearted , arrogant , bold , bombastic , chief , generous , grand , grandiloquent , grandiose , gross , highflown , important , lordly , magisterial , major , mighty , outstanding , overbearing , preeminent , pregnant , sesquipedalian , teeming , turgid