Keep standing - to hold type or plates ready for reprints.
Kerning - the adjustment of spacing between certain letter pairs, A and V for example, to obtain a more pleasing appearance. Not all DTP systems can achieve this.
Keyline - an outline drawn or set on artwork indicating size and position of an illustration or halftone. Keyline may be printing or non-printing.
Kiss die cut - to cut the top layer of a pressure sensitive sheet and not the backing.
Kraft paper - a tough brown paper used for packing.