Tra từ class - Từ điển Oxford Advanced Learner 8th

class [class classes classed classing] noun, verb, adjective BrE [klɑːs] NAmE [klæs]
noun

IN EDUCATION
1. countable + singular or plural verb a group of students who are taught together
• We were in the same class at school.
• She is the youngest in her class.
•He came top of the class.
•The whole class was/were told to stay behind after school.
2. countable, uncountable an occasion when a group of students meets to be taught
Syn: ↑lesson
• I was late for a class.
• See me after class.
•She works hard in class (= during the class).
•I have a history class at 9 o'clock.
3. countable (also classesplural)a series of classes on a particular subject
Syn: ↑course
• I've been taking classes in pottery.
• Are you still doing your French evening class?
4. countable + singular or plural verb (especially NAmE)a group of students who finish their studies at school, college or university in a particular year
•the class of 2008

IN SOCIETY
5. countable + singular or plural verb one of the groups of people in a society that are thought of as being at the same social or economic level
•the working/middle/upper class
• The party tries to appeal to all classes of society.
•the professional classes
6. uncountable the way that people are divided into different social and economic groups
•differences of class, race or gender
•the class system
•a society in which class is more important than ability

GROUP OF PEOPLE/ANIMALS
7. countable a group of people, animals or things that have similar characteristics or qualities
• It was good accommodation for a hotel of this class.
•different classes of drugs
• Dickens was in a different class from (= was much better than) most of his contemporaries.
•As a jazz singer she's in a class of her own (= better than most others).
see also ↑first-class, ↑high-class, ↑low-class, ↑second-class

SKILL/STYLE
8. uncountable an elegant quality or a high level of skill that is impressive
• She has class all right— she looks like a model.
• There's a real touch of class about this team.

IN TRAIN/PLANE
9. countable (especially in compounds)each of several different levels of comfort that are available to travellers in a plane, etc
• He always travels business class.
• The first-class compartment is situated at the front of the train.
see also ↑business class, ↑economy class syndrome, ↑first class, ↑second-class, ↑third-class, ↑tourist class

OF UNIVERSITY DEGREE
10. countable (especially in compounds)one of the levels of achievement in a British university degree exam
•a first-/second-/third-class degree

BIOLOGY
11. countable a group into which animals, plants, etc. that have similar characteristics are divided, below a ↑phylum
compare ↑family, ↑genus, ↑species
see the chattering classes at ↑chatter _v.

Word Origin:
mid 16th cent. (in sense 1): from Latin classis ‘a division of the Roman people, a grade, or a class of pupils’.

Thesaurus:
class noun
1. C+sing./pl. v.
•We were in the same class at school.
grade • |especially BrE year • • stream • |BrE set • |AmE track •
in a class/grade/set/year/stream
2. C, U
•I have an English class at 11.
lesson • • seminar • • session • • workshop • • tutorial • • period •
a class/lesson/seminar/session/workshop/tutorial on sth
in/during a class/lesson/seminar/session/workshop/tutorial/period
at a class/lesson/seminar/session/workshop/tutorial
go to/attend/give/conduct a class/lesson/seminar/session/workshop/tutorial
Class or lesson? A class is always for a group of people; a lesson can be for a group or for just one person.
3. C
•The college runs specialist language classes.
curriculum • |BrE programme • |AmE program • |BrE formal, AmE course •
in a/the class/curriculum/programme/course
a day/evening class/programme/course
run/take/do/enrol on/sign up for a class/programme/course
4. C+sing./pl. v., U
•ideas that appeal to all classes of society
level • • rank • • position • • status • • standing •
sb's class/level/position/rank/status/standing in/within sth
a/the low/lower class/level/rank/position/status/standing
the middle/upper class/level/rank
5. C
•It is cheap for this class of hotel.
category • • league • • classification • • kind • • type • • bracket • |especially BrE sort •
be in/within a class/category/league/classification/bracket
the same class/category/league/classification/kind/type/bracket/sort
a different class/category/league/classification/kind/type/bracket/sort
6. U (approving)
•There's a real touch of class about her.
style • • elegance • • glamour • • flair • • grace •
have/lack class/style/elegance/glamour/flair/grace
give sb/sth class/style/elegance/glamour/grace
a touch of class/style/elegance/glamour

Collocations:
Education
Learning
acquire/get/lack (an) education/training/(BrE) (some) qualifications
receive/provide sb with training/tuition
develop/design/plan a curriculum/(especially BrE) course/(NAmE) program/syllabus
give/go to/attend a class/lesson/lecture/seminar
hold/run/conduct a class/seminar/workshop
sign up for/take a course/classes/lessons
School
go to/start preschool/kindergarten/nursery school
be in the first, second, etc. (NAmE) grade/(especially BrE) year (at school)
study/take/drop history/chemistry/German, etc.
(BrE) leave/finish/drop out of/ (NAmE) quit school
(NAmE) graduate high school/college
Problems at school
be the victim/target of bullying
(BrE) play truant from/ (both BrE, informal) bunk off/skive off school (= not go to school when you should)
(both especially NAmE) skip/cut class/school
(BrE) cheat in/(NAmE) cheat on an exam/a test
get/be given a detention (for doing sth)
be expelled from/be suspended from school
Work and exams
do your homework/(BrE) revision/a project on sth
work on/write/do/submit an essay/a dissertation/a thesis/an assignment/(NAmE) a paper
finish/complete your dissertation/thesis/studies/coursework
hand in/ (NAmE) turn in your homework/essay/assignment/paper
study/prepare/ (BrE) revise/ (NAmE) review/ (NAmE, informal) cram for a test/an exam
take/ (both BrE) do/sit a test/an exam
(especially BrE) mark/ (especially NAmE) grade homework/a test
(BrE) do well in/ (NAmE) do well on/ (informal, especially NAmE) ace a test/an exam
pass/fail/ (informal, especially NAmE) flunk a test/an exam/a class/a course/a subject
University
apply to/get into/go to/start college/(BrE) university
leave/graduate from law school/college/(BrE) university (with a degree in computer science)
study for/take/ (BrE) do/complete a law degree/a degree in physics
(both NAmE) major/minor in biology/philosophy
earn/receive/be awarded/get/have/hold a master's degree/a bachelor's degree/a PhD in economics

Example Bank:
•He sat at the back of the class.
•He's taking classes in pottery.
•Membership of gardening clubs is drawn from all social classes.
•She came top of the class in English.
•She has real class.
•She's going to evening classes in Italian.
•She's got real class.
•The college offers classes in many subjects.
•The institute holds evening classes throughout the year.
•The musical entertainment added a touch of class to the occasion.
•These writers form a distinct class in Russian literature.
•We'll start the exercise in class and you can finish it for homework.
•Which history class are you in?
•Who's taking the class today?
•a player of great class
•a rare class of butterflies
•a rare class of neurological diseases
•sections of the working class
•topics being discussed at the breakfast tables of the chattering classes
•A lot of British comedy is based on class differences.
•A real parquet floor will add a touch of class to the room.
•As a jazz singer she's in a class of her own.
•Dickens was in a different class from most of his contemporaries.
•Do you consider yourself to be middle class?
•He finished top of the class.
•He was late for class again.
•Her sister is in my class.
•His ideas had an appeal among the wealthy, professional classes.
•I have an English class at 11.
•I'm taking a management class this semester.
•I'm taking night classes in art appreciation.
•It is the most reliable model in its class.
•It was an age in which all classes of society were expanding.
•It was pretty cheap for this class of hotel.
•Middle-class people will be hit hardest by these tax rises.
•Please see me after class.
•She works hard in class
•The college runs specialist language classes.
•The old class system is not appropriate in a modern age.
•The ruling class won't give up their position without a fight.
•The upper classes have no automatic right to rule.
•The whole class was told to stay behind after school.
•There are several distinct classes of drugs.
•There's a real touch of class about this team.
•They have devoted themselves to the class struggle.
•the freshman/sophomore/junior/senior class

verb often passive ~ sb/sth (as sth)

PUT INTO GROUP
to think or decide that sb/sth is a particular type of person or thing
Syn: ↑classify
• Immigrant workers were classed as aliens.
• I wouldn't have classed you as a Shakespeare fan.
•One in five people in the country are classed as poor.
Verb forms:

Word Origin:
mid 16th cent. (in sense 1): from Latin classis ‘a division of the Roman people, a grade, or a class of pupils’.

Example Bank:
•Are the players classed as amateur or professional?
•I wouldn't have classed you as a Shakespeare fan.
•In the ancient world slaves were classed with women and children.
•Prisoners classed as illiterate were given a basic education.
•The house could hardly be classed as a desirable property!

adjective only before noun (informal)

WITH SKILL/STYLE
very good
•a class player/performer
• She's a real class act.

Word Origin:
mid 16th cent. (in sense 1): from Latin classis ‘a division of the Roman people, a grade, or a class of pupils’.