Truncation is a word formation process that involves shortening a longer word by cutting off part of it, often to create a more manageable or casual form. This process is significant in language evolution, as it allows for the creation of new words that are easier to use in everyday conversation, making language more accessible and relatable. Truncation often overlaps with other word formation processes like compounding and blending, as it can contribute to the formation of informal or slang terms.