A mark left by a proofreader that means that a particular correction should be ignored, and the text left as it is.

A method of book binding with wire. Holes are punched along the edge of the binding, and wire spiraled through them.

1. The central curved stroke of an S.
2. A book’s bound edge.

An automatic check of spelling offered by most word processing programs.

The range of colors of visible light: red, orange, yellow, green, blue, indigo, and violet.

Abbreviation for specifications. Refers to  specifications for type and printing.

The parts of a computer that can’t be physically touched: programming, stored documents, operating system, etc. See hardware

Refers to the computer making a line break, but not starting a new paragraph. Also called word wrapping.

An electronic proof that may be viewed on a screen.

Refers to a hyphen that a computer will insert if a word falls at the end of a line and a hyphen is necessary.