<p><strong>Adjective</strong></p><ul><li>Large, as in size, height, width, or amount: a big house; a big quantity.</li><li>Of major concern, importance, gravity, or the like: a big problem.</li><li>Outstanding for a specified quality: a big liar; a big success.</li><li>Important, as in influence, standing, or wealth: a big man in his field.</li><li>Grown-up; mature: big enough to know better.</li><li>Doing business or conducted on a large scale; major in size or importance: big government.</li><li>Consisting of the largest or most influential companies in an industry: Big steel wants to lower prices, but the smaller mills don't.</li><li>Informal: known or used widely; popular: Nouvelle cuisine became big in the 1970s.</li><li>Magnanimous; generous; kindly: big enough to forgive.</li><li>Boastful; pompous; pretentious; haughty: a big talker.</li><li>Loud; orotund: a big voice.</li><li>(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.</li><li>(Of a wine) having more than average flavor, body, and alcoholic content.</li><li>Filled; brimming: eyes big with tears.</li><li>Chiefly South Midland and Southern U.S.: pregnant.</li><li>Obsolete: very strong; powerful.</li></ul><p><strong>Adverb</strong></p><ul><li>Informal: boastfully; pretentiously: to act big; to talk big.</li><li>Informal: with great success; successfully: to go over big.</li></ul><p><strong>Noun</strong></p><ul><li>The bigs, Sports Slang: the highest level of professional competition, as the major leagues in baseball.</li></ul>