Here are some ways to think about "preclude":
* To stop something in advance: "The heavy rain precluded us from going to the beach."
* To make something impossible: "His lack of education precluded him from getting the job."
* To rule something out: "The new regulations preclude the use of certain chemicals in food production."
Examples:
* Her broken leg precluded her from participating in the marathon.
* The lack of funding precluded the completion of the project.
* His fear of heights precludes him from climbing mountains.
Let me know if you have any other questions!