<p><strong>Adjective</strong></p><ul><li>having a great or considerable extent or reach upward or vertically; lofty; tall: a high wall.</li><li>having a specified extent upward: The apple tree is now 20 feet high.</li><li>situated above the ground or some base; elevated: a high platform; a high ledge.</li><li>exceeding the common degree or measure; strong; intense: high speed; high color.</li><li>expensive; costly; dear: The price of food these days is much too high.</li><li>exalted in rank, station, eminence, etc.; of exalted character or quality: a high official; high society.</li><li>acute in pitch.</li><li>a little sharp, or above the desired pitch.</li><li>produced by relatively rapid vibrations; shrill: the high sounds of crickets.</li><li>extending to or from an elevation: a high dive.</li><li>great in quantity, as number, degree, or force: a high temperature; high cholesterol.</li><li>chief; principal; main: the high altar of a church.</li><li>of great consequence; important; grave; serious: the high consequences of such a deed; high treason.</li><li>haughty; arrogant: He took a high tone with his subordinates.</li><li>advanced to the utmost extent or to the culmination: high tide.</li><li>elevated; merry or hilarious: high spirits; a high old time.</li><li>rich; extravagant; luxurious: They have indulged in high living for years.</li><li>intoxicated with alcohol or narcotics: He was so high he couldn't stand up.</li><li>extreme in opinion or doctrine, especially religious or political: a high Tory.</li><li>having considerable energy or potential power.</li><li>containing a relatively large amount of a specified constituent (usually used in combination): high-carbon steel.</li><li>(of a pitched ball) crossing the plate at a level above the batter's shoulders: The pitch was high and outside.</li><li>having greater value than other denominations or suits.</li><li>being or having a winning combination: Whose hand is high?</li><li>(of a wind) of force 10 on the Beaufort scale, equal to a whole gale.</li></ul><p><strong>Adverb</strong></p><ul><li>at or to a high point, place, or level.</li><li>in or to a high rank or estimate: He aims high in his political ambitions.</li><li>at or to a high amount or price.</li><li>in or to a high degree.</li><li>luxuriously; richly; extravagantly: They have always lived high.</li><li>Nautical: as close to the wind as is possible while making headway with sails full.</li></ul><p><strong>Noun</strong></p><ul><li>high gear: He shifted into high when the road became level.</li><li>high school.</li><li>a pressure system characterized by relatively high pressure at its center.</li><li>a high or the highest point, place, or level; peak: a record high for unemployment.</li><li>a euphoric state induced by alcohol, drugs, etc.</li><li>a period of sustained excitement, exhilaration, or the like: After winning the lottery he was on a high for weeks.</li><li>the ace or highest trump out, especially in games of the all fours family.</li></ul>