big four Definition

quadruple, japan, semis, slayer, cab, case, cello, circus, club, day, deep, diamond, dreadnought, east, edam, folio, general, horse, jeroboam, large, lead, omnibus, ostrich, schooner, side, spacetime, thumb, viola, ace, age, bassoon, break, cartridge, chill, drag, goat, help, high, hoop, jolly, mass, mess, montana, osprey, president roosevelt, roosevelt, scene, semi, supersymmetry, sweet, table, tease, tot, tree, tug, utah, yap, air, airs, ball, bear, bell, condor, din, echo, elder, half, homer, horn, penny, peony, reel, round, sedan, stick, ten, tenor, wheel, acre, aida, barrel, bass, bigg, blaze, bulk, car, cat, course, dam, deluxe, dna, duke, earth, elk, epic, fear, gale, gang, gas, great,