There is such a cubic card (sweep) with designations. What do they mean?

POS – from “Position” (or not?)
NEG from what word?

direct attitude to work does not have, just want to know.

Answer 1, Authority 100%

POS – POSITIVE – Positive Direction (plus sign on the axis)
NEG – Negative – negative direction (minus sign on the axis)

specifically in cubic cards, this direction in which each side of the cube is located along the X Y Z axes.

p.s. Specific directions are largely conditional. Depending on the engine / API axis, the coordinate axis can be set in different directions and orientations (right / left coordinate system), so, for example, unambiguous “Z always looks up” no.