Possessing great physical or political power. / Vigorous and energetic. / (of an optical instrument) Capable of great magnification.

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.

That operates, moves or takes place at a greater than normal speed.

(idiomatic, slang) To intoxicate oneself with drugs or other substances. / (figuratively, slang) To become euphoric by means other than the use of drugs.

(nautical) Regions of the ocean that are far from shore, especially those regions that do not belong to any country.