The superlative of high, adj. (in various senses).

Of the highest excellence; surpassing all others in quality.

Preceding all others in a series, succession, order, set, or enumeration.

The superlative of great, adj. in various senses. In senses corresponding to great, adj. III.: having the most significant effects, importance…

Of the best quality or sort.

First in importance, rank, or position; chief, leading, foremost.

Of a person, people, nation, etc.: highest in rank, power, or jurisdiction; supreme. Also: pre-eminent, leading, or most notable. Frequently as…

In weakened sense in comparative and superlative constructions: high-ranking, having high authority… In the superlative (supremest, most supreme).

Of the highest quality, degree, or amount; greatest.

First in position, rank, or importance; chief, leading, foremost, premier. Obsolete.

First in rank, order, or quality; principal, chief, most eminent, best; of high standing. See also top people, n.

Pre-eminent; second to none.

In emphatic use: = best, adj. Now frequently in bestest friend.

Of the highest grade; of the best quality; belonging to the most important group.

Most excellent or splendid.

Usually as postmodifier. Better or more than all others of the same kind; pre-eminent, supreme.

First in importance or position; foremost, leading; outstanding. Cf. premier, adj. 1a.

Of the highest class or degree of excellence.

Most excellent or splendid; most unusual.

attributive. Of the highest quality, first-class; comprising, designed for, or characteristic of an elite; (also) designating people of the highest…

Best, most favourable, esp. under a particular set of circumstances; = optimal, adj.

Best, most favourable, esp. under a particular set of circumstances; = optimum, adj.

Of the highest standard, quality, or rank; outstanding, matchless. Also occasionally as adv. Cf. first class, adj. 1, class, n. 5a.

In extended use. Consisting of persons of exceptional talent or renown in their fields (esp. with reference to professional reputation, as…

of the highest grade in value, of the best or highest quality; hence colloquial (occasionally ironically), extremely good, first-rate.

Of a review or rating of a product, establishment, performance, etc.: awarding five stars in a grading system in which this denotes the highest (or a…

colloquial (originally and chiefly U.S.). Best, finest.

(a) highest; (b) best.

the end. figurative and colloquial. U.S. slang (esp. Jazz slang). A term of extreme approbation: the best, the ultimate (ultimate, adj. 1). Also…

Someone or something that is greatest in some respect. slang (originally and chiefly U.S.). the most (in predicative use): the best or finest…