WordReference Random House Learner's Dictionary of American English © 2017
class /klæs/USA pronunciation   n. 
  1. a number of persons or things thought of as belonging together;
    sort:[countable]the class of living things.
  2. Education[countable]
    • a group of students meeting regularly:My writing class had 28 students.
    • the period in which they meet:The class is on Mondays and Wednesdays.
    • a meeting of such a group:During our last class we talked about verb tenses in English.
  3. Education a group of students graduated in the same year:[countable]the class of '92.
  4. Sociologya level of society sharing the same characteristics;
    social rank: [countable]the blue-collar class.[uncountable]socialists fighting against the concept of class.
  5. a division of people or things according to rank, quality, etc.:[uncountable]a hotel of the highest class.
  6. Informal Terms Informal. grace or dignity, as in behavior:[uncountable]She showed a lot of class during that interview.

  1. [before a noun][Informal.]of high quality: She was a class act—never lost her temper and always treated people kindly.

  1. to place or arrange in a class* classify: [+ object]to class doctors with lawyers.[+ object + as + object]We classed them as believers in the same God as ourselves.
  1. in a class by itself or oneself, having no equal;
    unequaled:a car in a class by itself; was in a class by himself when it came to scoring goals.

class.,  an abbreviation of:
  1. classic.
  2. classical.
  3. classification.
  4. classified.

WordReference Random House Unabridged Dictionary of American English © 2017
class  (klas, kläs),USA pronunciation n. 
  1. a number of persons or things regarded as forming a group by reason of common attributes, characteristics, qualities, or traits;
    sort:a class of objects used in daily living.
  2. Educationa group of students meeting regularly to study a subject under the guidance of a teacher:The class had arrived on time for the lecture.
  3. Educationthe period during which a group of students meets for instruction.
  4. Educationa meeting of a group of students for instruction.
  5. Educationa classroom.
  6. Educationa number of pupils in a school, or of students in a college, pursuing the same studies, ranked together, or graduated in the same year:She graduated from Ohio State, class of '72.
  7. Sociologya social stratum sharing basic economic, political, or cultural characteristics, and having the same social position:Artisans form a distinct class in some societies.
  8. the system of dividing society;
  9. social rank, esp. high rank.
  10. the members of a given group in society, regarded as a single entity.
  11. any division of persons or things according to rank or grade:Hotels were listed by class, with the most luxurious ones listed first.
  12. excellence;
    exceptional merit:She's a good performer, but she lacks class.
  13. Eastern Religions[Hinduism.]any of the four social divisions, the Brahman, Kshatriya, Vaisya, and Shudra, of Hindu society;
    varna. Cf. caste (def. 2).
  14. Informal Termselegance, grace, or dignity, as in dress and behavior:He may be a slob, but his brother has real class.
  15. any of several grades of accommodations available on ships, airplanes, and the like:We bought tickets for first class.
  16. [Informal.]the best or among the best of its kind:This new plane is the class of the wide-bodied airliners.
  17. Biologythe usual major subdivision of a phylum or division in the classification of organisms, usually consisting of several orders.
  18. British Termsany of three groups into which candidates for honors degrees are divided according to merit on the basis of final examinations.
  19. drafted or conscripted soldiers, or persons available for draft or conscription, all of whom were born in the same year.
  20. GrammarSee  form class. 
  21. Religion[Eccles.]classis.
  22. Religion(in early Methodism) one of several small companies, each composed of about 12 members under a leader, into which each society or congregation was divided.
  23. Statisticsa group of measurements that fall within a specified interval.
  24. Mathematicsa set;
    a collection.
  25. the classes, the higher ranks of society, as distinguished from the masses.

  1. [Informal.]of high quality, integrity, status, or style:class players on a mediocre team.

  1. to place or arrange in a class;
    classify:to class justice with wisdom.

  1. to take or have a place in a particular class:those who class as believers.
  2. class up, [Informal.]to improve the quality, tone, or status of;
    add elegance, dignity, style, etc., to:The new carpet and curtains really class up this room.
classa•ble, adj. 
classer, n. 
  • Latin: class, division, fleet, army; singular class back formation from plural
  • earlier classis, plural classes 1590–1600
    • 27.See corresponding entry in Unabridged group, categorize, type, rank, rate.
    See  collective noun. 

  1. classic.
  2. classical.
  3. classification.
  4. classified.

Collins Concise English Dictionary © HarperCollins Publishers::

class /klɑːs/ n
  1. a collection or division of people or things sharing a common characteristic, attribute, quality, or property
  2. a group of persons sharing a similar social position and certain economic, political, and cultural characteristics
  3. the pattern of divisions that exist within a society on the basis of rank, economic status, etc
  4. (as modifier): the class struggle, class distinctions
  5. a group of pupils or students who are taught and study together
  6. a meeting of a group of students for tuition
  7. chiefly US a group of students who graduated in a specified year: the class of '53
  8. (in combination and as modifier) Brit a grade of attainment in a university honours degree: second-class honours
  9. one of several standards of accommodation in public transport
  10. informal excellence or elegance, esp in dress, design, or behaviour
  11. another name for set2
  12. proper classa class which cannot itself be a member of other classes
  13. in a class of its own, in a class by oneselfunequalled; unparalleled
  1. to have or assign a place within a group, grade, or class
Etymology: 17th Century: from Latin classis class, rank, fleet; related to Latin calāre to summon

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