class
/k-l-æ-s/
•class, grade, part
a unit in object-oriented programming that defines a set of properties and methods
Common Phrases
- class definition—the structure of a class
- class instance—an object created from a class
- class method—a function defined within a class
Example Sentences
A class in programming contains variables and functions.
BeginnerShe created a class to represent a car in her code.
BeginnerEvery class can have multiple instances called objects.
BeginnerHe is learning how to create a class for a game character.
IntermediateThe class hierarchy in this framework is complex and requires careful design.
IntermediateInheritance allows one class to use properties from another class.
IntermediateThe class structure must be optimized for performance in large-scale applications.
AdvancedPolymorphism enables different classes to be treated as objects of a common superclass.
AdvancedDesign patterns like Singleton restrict a class to have only one instance.
Advanced
A legal action brought by a group of people with similar claims
Common Phrases
- class action lawsuit—A legal proceeding involving a group of people with similar claims
- file a class action—To initiate a legal case on behalf of a group
- class action settlement—A resolution of a group legal claim
Example Sentences
The class action was filed against the company.
BeginnerMany employees joined the class to seek compensation.
BeginnerThe court dismissed the class due to insufficient evidence.
BeginnerThe judge approved the class action settlement.
IntermediateClass actions often require a certified representative.
IntermediateThe class action targeted environmental violations.
IntermediateThe class action lawsuit highlighted significant corporate misconduct.
AdvancedClass certification requires meeting strict legal standards.
AdvancedThe class action's outcome set a precedent for similar cases.
Advanced
a rank or category in a system of classification
Common Phrases
- class schedule—a list of classes a student is enrolled in
- class ranking—a student's position relative to peers in academic performance
- class assignment—a task given to students during a class session
Example Sentences
The teacher divided the class into groups for the project.
BeginnerOur class starts at 9 AM every Monday.
BeginnerShe missed the class because of illness.
BeginnerThe class discussion revealed significant differences in opinions.
IntermediateHe was promoted to a higher class in the military.
IntermediateThis species belongs to the class Mammalia.
IntermediateThe classification system uses multiple classes to categorize data.
AdvancedIn object-oriented programming, a class defines an object's properties.
AdvancedThe socioeconomic class structure influences access to resources.
Advanced
a type or kind of something
Common Phrases
- first class—first class
- business class—business class
- class action—class action
Example Sentences
This is a class of apples.
BeginnerThe car has a luxury class.
BeginnerShe bought a first-class ticket.
BeginnerThe class of materials determines their properties.
IntermediateHe belongs to a rare class of athletes.
IntermediateThe class of solutions is limited here.
IntermediateIn mathematics, a class can be a collection of sets.
AdvancedThe class of NP-complete problems is well-defined.
AdvancedHer research explores the class of quantum algorithms.
Advanced
a group of students who are taught together by a teacher
Common Phrases
- take a class—to participate in a class
- attend a class—to go to a class
- class schedule—a timetable of classes
Example Sentences
I have a class at 10 AM.
BeginnerThe teacher wrote on the board.
BeginnerStudents in the class are quiet.
BeginnerShe enrolled in a cooking class.
IntermediateThe class discussion was very engaging.
IntermediateHe missed the class due to illness.
IntermediateThe university offers a wide range of classes.
AdvancedAttending class regularly is essential for success.
AdvancedThe professor divided the class into groups for a project.
Advanced
a division of society based on wealth, education, or occupation
Common Phrases
- working class—working class
- class divide—class divide
- class consciousness—class consciousness
Example Sentences
She belongs to a higher class in society.
BeginnerThe teacher explained the class system in history.
BeginnerIn many countries, class determines access to education.
BeginnerThe novel explores the tensions between different classes.
IntermediateUrbanization often blurs traditional class boundaries.
IntermediateClass mobility remains a challenge in modern economies.
IntermediateMarxist theory emphasizes the role of class struggle in history.
AdvancedThe documentary critiques how class intersects with race and gender.
AdvancedSociologists debate whether class is becoming obsolete in digital economies.
Advanced
a group of people or things with similar characteristics
Common Phrases
- class schedule—class schedule
- class assignment—class assignment
- class meeting—class meeting
Example Sentences
She is in the same class as me.
BeginnerThe teacher divided the class into groups.
BeginnerThis class is about science.
BeginnerThe class of endangered species requires attention.
IntermediateHe belongs to a different social class.
IntermediateThis class is more challenging than the previous one.
IntermediateThe class of mammals includes humans, whales, and bats.
AdvancedHer research focuses on the class dynamics in post-industrial societies.
AdvancedThe class of problems in computational complexity theory is vast.
Advanced
A level or stage in a system of education, such as first grade or second grade.
Common Phrases
- grade school—elementary and secondary school
- grade level—the educational level a student is in
- grade point average—a numerical representation of academic performance
Example Sentences
She is in the third grade.
BeginnerMy brother started first grade last month.
BeginnerThe teacher wrote the grade on the test.
BeginnerStudents in higher grades learn more complex math.
IntermediateThe school has grades from kindergarten to twelfth grade.
IntermediateParents often compare their child's grade level to peers.
IntermediateThe university's grading system is highly competitive.
Advanced
a category used to classify words based on their function in a sentence
Common Phrases
- parts of speech—grammatical categories
- a part of—a component of
- play a part in—contribute to
Example Sentences
Nouns are a part of speech.
BeginnerVerbs are another part of speech.
BeginnerLearning the parts of speech helps with grammar.
BeginnerUnderstanding the different parts of speech improves writing skills.
IntermediateEach part of speech has a specific role in a sentence.
IntermediateTeachers often use charts to explain parts of speech.
IntermediateThe part of speech determines how a word functions grammatically.
AdvancedIn some languages, the part of speech can change based on context.
AdvancedLinguists analyze parts of speech to understand language structure.
Advanced