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blueline

blueline

8.4
A printed copy of a drawing with blue lines for checking before final printing
  • noun
  • /ˈbluːlaɪn/
  • Archaic
translation icon : blueline
  • He and I spent many hours together, poring over the proof sheets, galleys, and bluelines of various publications, looking for small errors, telling stories.

Examples

  • The editor reviewed the blueline to ensure that all text and images were correctly placed before printing.

  • She made several notes on the blueline to clarify changes needed for the upcoming publication.

  • Before finalizing the book, the author carefully checked the blueline for any mistakes or adjustments.

Synonyms

blueprint
vsblueline
  • Archaic
75 3.9

A technical drawing printed with white lines on a blue background used in construction work

serves mainly to check copies before final printing rather than act as working plans

Surface Forms

blueline singular
bluelines plural

Morphology

blueline = blue + line (semi-transparent) = blue + line

The compound points to a blue-coloured line, but here it denotes a specific printing/proof copy (a technical usage) that learners may not deduce from the parts alone.

Etymology

Blueline for a proof copy comes from old copying methods that made drawings with blue lines, much like a blueprint, so the important parts showed in blue. That's why a blueline is a copy you check where the key lines are shown in blue.