proofroom
/ˈprufˌrum/
noun
- A room in a printing or publishing office where proofs (trial copies of printed material) are checked and corrected.
- She caught several typos while working in the proofroom before the magazine went to press.
- The proofroom was quiet except for the sound of pencils marking corrections on paper.
- The editor spent the morning in the proofroom reviewing the latest pages of the novel.