


The main difference is that "defuse" means to make something less dangerous or explosive, while "diffuse" means to spread or disperse something in a gentle or gradual manner.
Use "defuse" when you need to neutralize or remove a threat, such as disarming an explosive device or de-escalating a tense situation. Use "diffuse" when you want to spread or disperse something, such as light, heat, or information, in a gentle or gradual way.
Context matters in English because the meaning of words can vary based on the surrounding words, phrases, or situation. Words often have multiple meanings, and the intended sense becomes clear through the context in which they are used.

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