Cyan
C, one of the four process colors used in the CMYK printing process, blue in color
Density
the degree of color or darkness of an image or photograph
Hickey
reoccurring unplanned spots that appear in the printed image from dust, lint, dried ink
Keyline
an outline drawing (see also trim box defintion)
Make-ready
all the activities required to prepare a press for printing
Opacity
the amount of show-through on a printed sheet. The lesser the amount of show-through the thicker the paper, the more show-through the thinner the paper
Overlay
transparent cover sheet on artwork often used for instructions
Pantone Matching System
(PMS) Industry standard for ink mixing
QTY
quantity
Stack by page or subset
to keep each piece separate or independent
Y
Yellow (see Yellow definition)
Yellow
Y, one of the four process colors used in the CMYK printing process, yellow in color