
Most people walk in and say short back and sides, which covers about fifteen different haircuts. A few specific words will get you much closer to what is actually in your head.
Fade means the length changes gradually with no visible line. Taper is a fade that only happens at the edges. A line-up is the sharp edge cut into the hairline. Texture means weight removed so the top moves.
Then say how long you want it on top in finger widths, and how you want it to sit — back, forward or messy. That is genuinely all we need. Still unsure? Bring a photo. Nobody here judges.