“This statement is false,” e.g.

The answer to the crossword question is the word “paradox“. A paradox is a statement that contradicts itself or seems to go against common sense. In this specific example of “This statement is false,” it is a paradox because if the statement is true, then it must be false, and if it is false, then it must be true. This creates a contradiction, making the statement a paradox. Paradoxes are often used in philosophy and logic to challenge assumptions and bring attention to contradictions or inconsistencies that may exist in reasoning.