(idiomatic) A social or economic group wielding undue power, influence or economic clout.

Applied to premium gasoline. / (humorous, by extension) Of coffee: not decaffeinated. / Of a high standard.

Of high quality, particularly good.

A junior high school.

expensive

Operating at relatively high pressure, such as several times atmospheric pressure. / Tense; stressful. / Involving much persuasion.

Having an elevated or moralistic tone; pompous. / Oratorial, sometimes to the point of sounding contrived.

(footwear) Having tall heels. / Wearing high heels.

simple past tense and past participle of high-heel

Upper-class. / Recognized for its quality.