Greatest in size or extent; largest: superlative of much or mickle in its original sense ‘great,’ ‘large.’Greatest in age; oldest.Greatest in rank, position, or importance; highest; chief.Greatest in amount, degree, or intensity: superlative of much.Greatest in number; numerous beyond others; amounting to a considerable majority: superlative of many: used before nouns in the plural.n. The greatest or greater number: in this sense plural.n. Greatest value, amount, or advantage; utmost extent, degree, or effect.In the greatest or highest or in a very great or high degree, quantity, or extent; mostly; chiefly; principally.Used before adjectives and adverbs to form a superlative phrase, as more is to form a comparative: as, most vile; most wicked; most illustrious; most rapidly.A double superlative suffix associated with -more, a comparative suffix, now taken as a suffixal form of most, as used in forming superlatives, as in foremost, hindmost, uppermost, utmost, inmost, topmost, etc. Compare -more.