I suppose by labels you mean *tags*, yeah?
2dcg means 2-Dimensional Computer Graphic. Meaning the art is generated via a drawing method of some description.
3dcg is 3-Dimensional Computer Graphic. Generally the art is a 3-D model that is posed and rendered.
bdsm is Bondage/Discipline/Sadism/Masochism. It's a very old term and no one really knows what it means anymore. Just know that maybe it involves whips and stuff?
dilf is Dad I'd Like to Fuck, the male form of milf.
milf is Mom I'd Like to Fuck, the female form of dilf.
ntr is Netorare is fancy japanese word meaning *Stolen* a vague term that has something to do with tragedy, betrayal and jealousy.
pov which is Point Of View meaning that the *camera* is the protagonist... I guess.
vore is a slightly odd one. Not a abbreviation but a latin word meaning *to eat*. Ranging from the more common cartoonish eating or being eaten whole to a more rare grisly butchery and cannibalism.
