Which theory suggests that the structure of a language affects its speakers' cognition and worldview?

The theory that suggests the structure of a language affects its speakers' cognition and worldview is called the Sapir-Whorf Hypothesis, or linguistic relativity. This idea means that the way people think and see the world can be shaped by the language they use. For example, if a language has many words for different types of snow, speakers of that language may notice and think about snow in ways that others do not. This shows how language can influence thoughts and perceptions, making communication and understanding unique for different cultures. Overall, the Sapir-Whorf Hypothesis highlights the important connection between language and how we understand our surroundings.