Which word is synonymous with chaos?

The term "havoc" is synonymous with chaos as it conveys a sense of widespread destruction, disorder, or confusion, which aligns closely with the notion of chaos. When something is in chaos, it is typically unorganized, turbulent, and unpredictable, similar to the disruption implied by havoc. In contrast, the other options represent states that are directly opposite to chaos. "Order" signifies a structured or organized state, "harmony" refers to a balanced and cooperative condition, and "tranquility" describes a calm and peaceful environment. None of these words capture the essence of chaos, making "havoc" the most accurate synonym.