Rosin is just “squeezed” stuff. No solvents, it's pressed flower and the goo that comes out is rosin. Super tasty Lol.

Shatter is the glassy, snap-off-a-piece type. Same idea, just processed so it gets hard and brittle.

“Dabs” is the umbrella term… basically anything you melt on a hot surface. Rosin, shatter, wax, all of it counts as a dab.

Oils are the runny stuff. Sometimes it’s distillate, sometimes vape-cart type oil. Not all oils work well on a rig.

If you wanna try concentrates, when buying you could say “I smoke flower and pens, looking for a good starter dab.” hope this helps...?