@jillzizzo29 How worrisome! That is why Dr Google concerns me though it scares people without knowing context of your situation or being familiar with the specific radiologist's use of terms.

An "opacity" is a hazy, grayish area that partially obscures a good view in a lung image, similar to frosted (or ground) privacy glass in a window. Typically this would be reported as a "ground glass opacity".
A "nodule" is a round(ish) white image surrounded by dark lung tissue.
"Spiculated" means instead of being smooth, the margins of the area being described are irregular (or spiky.)

If you had a clear scan 3 months ago, followed by pneumonia, chances are the spiculated opacities are what are typically called "ground glass opacities" which are artifacts (leftovers) of infected material that will eventually clear. If, on the other hand it says "spiculated nodules" those are more permanent and possibly more concerning.

Do you have underlying conditions that make you more likely to develop cancer in your lungs?