What term refers to interspersing one language with another?

The term that refers to interspersing one language with another is "Code Switching." This concept involves alternating between two or more languages or dialects within a conversation or even within a single sentence. It often occurs in multilingual communities where speakers fluidly switch from one language to another based on context, audience, or conversational topic.

Code switching can serve various functions, such as emphasizing a point, expressing identity, filling in vocabulary gaps, or adapting to the linguistic preferences of conversational partners. This phenomenon reflects the dynamic and interactive nature of language use in bilingual or multilingual environments.

While options like "Language Mixing" and "Code-Switching" might suggest some related ideas, they do not capture the specific phenomenon well. "Language Integration" generally refers to more comprehensive approaches to blending languages in education or communication and does not specifically denote the act of oscillating between languages in conversation, making it less accurate in this context.