Synonym: chief, elevated, eminent, exalted, grand, great, important, lofty, long, main, piercing, screechy, sharp, shrill, soaring, steep, tall, towering. Antonym: low. Similar words: highlight, thigh, highway, sigh, might, night, right, weigh. Meaning: [haɪ] 
n. 1. a lofty level or position or degree 2. an air mass of higher than normal pressure 3. a state of sustained elation 4. a state of altered consciousness induced by alcohol or narcotics 5. a high place 6. a public secondary school usually including grades 9 through 12 7. a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed. adj. 1. greater than normal in degree or intensity or amount 2. (literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high') 3. standing above others in quality or position 4. used of sounds and voices; high in pitch or frequency 5. happy and excited and energetic 6. (used of the smell of meat) smelling spoiled or tainted 7. slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana). adv. 1. at a great altitude 2. in or to a high position, amount, or degree 3. in a rich manner 4. far up toward the source.
n. 1. a lofty level or position or degree 2. an air mass of higher than normal pressure 3. a state of sustained elation 4. a state of altered consciousness induced by alcohol or narcotics 5. a high place 6. a public secondary school usually including grades 9 through 12 7. a forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed. adj. 1. greater than normal in degree or intensity or amount 2. (literal meaning) being at or having a relatively great or specific elevation or upward extension (sometimes used in combinations like `knee-high') 3. standing above others in quality or position 4. used of sounds and voices; high in pitch or frequency 5. happy and excited and energetic 6. (used of the smell of meat) smelling spoiled or tainted 7. slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana). adv. 1. at a great altitude 2. in or to a high position, amount, or degree 3. in a rich manner 4. far up toward the source. 241. High levels of lead could damage the intellectual development of children.
242. She rubbed up the silver plates to a high gloss.
243. High morale among staff was found to correlate positively with productivity.
244. The water rose high enough for them to continue upstream.
245. Pointing upwards[sentencedict.com], he indicated a large nest high in the tree.
246. If you would go up high , then use your own legs ! Do not let yourselves carried aloft; do not seat yourselves on other people's backs and heads .(F. W .
247. That path is too high; level it down from there.
248. Measures to combat terrorism will be high on the agenda.
249. A frequent criticism of the proposal has been its high cost.
250. The high cost of energy was a problem for consumers.
251. We saw a whale blowing a jet of spray high in the air.