* Science: The vapor from the boiling water rose and condensed on the cold window.
* Nature: As the sun set, a mystical vapor filled the valley, creating an ethereal atmosphere.
* Technology: The e-cigarette emitted a cloud of vapor, carrying nicotine into the user's lungs.
* Figurative: Her dreams seemed to vanish like vapor in the morning breeze.
* Idiom: His arguments were nothing but hot air, just a bunch of empty vapor.
Let me know if you'd like to see more examples or have a specific context in mind!