Which term refers to the blending of two or more languages in communication?

The correct term for the blending of two or more languages in communication is bilingualism. Bilingualism specifically refers to the ability of individuals or communities to use two distinct languages in a manner that allows for effective communication. This often occurs in environments where speakers of different languages interact, leading to the integration of linguistic elements from both languages into everyday speech.

The other terms listed do not accurately describe this phenomenon. Multiculturalism refers to a societal structure that recognizes and values diverse cultural backgrounds within a community, rather than the specific blending of languages. Interculturalism focuses on the interaction and relationship between different cultures, often emphasizing understanding and dialogue, but does not specifically address language blending. Cross-culturalism involves the comparison and interaction of various cultures, which may include language but is broader in scope than bilingualism. Thus, bilingualism is the most precise term for the mixing of languages in communication.