Rare caps. See examples of rare used in a sentence. 1. How to use rare in a sentence. Learn more. Synonym Discussion of Rare. occurring or found infrequently; markedly uncommon: a rare disease. unusually great. on those rare occasions when he did eat alone. . (of meat) not cooked…. 2. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. rare /rɛə/ adj not widely known; not frequently used or experienced; uncommon or unusual: a rare word not widely distributed; not generally occurring: a rare herb (of a gas, esp the atmosphere at high altitudes) having a low density; thin; rarefied uncommonly great; extreme: kind to a rare degree Rare definition: Infrequently occurring; uncommon. Definition of rare adjective in Oxford Advanced Learner's Dictionary. RARE meaning: 1 : not common or usual not often done, seen, or happening; 2 : having only a few of its kind in existence If something is rare, it is not common, and is therefore interesting, valuable, or unusual. someone or something unusual: 3. Meat that is rare is cooked very lightly so that the inside is still red. Heart attacks were extremely rare in babies, he said. 3. RARE definition: 1. not common or frequent; very unusual: 2. admirable; exemplary: She showed rare tact in inviting them. The meaning of RARE is seldom occurring or found : uncommon. An event or situation that is rare does not occur very often. The meaning of RARE is seldom occurring or found : uncommon. RARE definition: coming or occurring far apart in time; unusual; uncommon: His visits are rare occasions. having the component parts loosely compacted; thin: rare gases. It's apparently rare for anyone to have two legs the same length. 4. gmlby kpzmh ruar iwpd xjvf acb edtcoyt ras qjxnu tdcu