What does the root word belli mean my teacher says war but I have any idea how to put it in a sentence?

You are right! The root word "belli" does mean "war" in Latin. It's the root of many English words related to war. Here's how you can use it in a sentence:

Example: The *belligerent* nations prepared for battle, their armies ready to clash.

Here, the word "belligerent" means "engaged in war" and comes from the root "belli" and the suffix "-gerent" which means "to carry on."

Here are some more examples:

* Rebellion: A *belligerent* rebellion against the ruling class.

* Combat: The soldiers were trained in *bellicose* combat tactics.

* Military: The *belligerent* actions of the military were met with international condemnation.

Remember, "belli" usually implies conflict or hostility.