While language can be used for entertainment purposes, its primary functions are communication, expression, and thought.

Sociolinguistics examines the relationship between language and society, exploring how language is used in different social contexts and how it shapes cultural norms and identities.

Language learning specifically refers to the process of acquiring a second language, while language acquisition is a broader term that encompasses both first and second language acquisition.

Grammar refers to the system of rules that govern how words are combined to form sentences and how sentences are structured.

Idioms are fixed expressions that have a figurative meaning that is different from the literal meaning of the individual words.

Cultural relativism emphasizes the importance of understanding and respecting different cultures on their own terms, without imposing one's own cultural values and beliefs.

Written language is a form of verbal communication, while body language, facial expressions, and eye contact are all forms of nonverbal communication.

Acculturation refers to the process of adapting to a new culture, while assimilation involves adopting the dominant culture and losing one's own cultural identity.

Sociolinguistics examines the relationship between language and society, exploring how language is used in different social contexts and how it shapes cultural norms and identities.

Linguistic relativity, also known as the Sapir-Whorf hypothesis, suggests that the structure of a language can influence the way its speakers conceptualize and categorize the world.

Technological change is not a type of language change. Language change refers to the gradual evolution of a language over time, while technological change refers to the development and adoption of new technologies.

Ethnocentrism is the belief that one's own culture is superior to all others and that other cultures should be judged by the standards of one's own culture.

Biological diversity refers to the variety of life on Earth, while dialectal diversity, accent diversity, and register diversity are all types of linguistic diversity.

Cultural hegemony refers to the dominance of one culture over others in a society, where the dominant culture's values, beliefs, and practices are imposed on other cultures.

Language revitalization refers to the efforts to revive and restore a language that is endangered or has become extinct, while language death, language shift, and language extinction are all types of language endangerment.