Preclude often implies a permanent or definitive prevention of something happening. The judge's ruling precludes any future claims of ownership.
Pro Tip 2/3
Not Immediate
Preclude doesn't mean to stop something instantly; it sets conditions that prevent future occurrences. Building a fence around the garden precludes deer from entering.
Pro Tip 3/3
Academic Tone
The word 'preclude' is often used in formal or academic contexts, rather than casual speech. The research precludes the possibility of a chemical reaction in such conditions.