You’ve got to speak the language in order to master Lightroom. If you find yourself not knowing what a term means, just check out this page for reference.
Culling a set of images means that you narrow them down to the “keepers”. Cut out the bad and leave only what you want to work with. We can do this with flags, starring photos, or even deleting the ones we don’t want.
Modules are the separate “workspaces” of Lightroom, such as “Library”, “Develop”, and “Print” for example.
A Lightroom preset is basically a “recipe” of editing settings to apply to a photo. With presets, we can apply a look to a photo really quickly.