What does "proofreading" mean?

The act or process by which a document is proofread.

Proofreading

Common synonyms include: check, clarify, communication correction, copyedit, copyediting, correct.

noun, verb

noun, verb ·3 syllables ·Uncommon ·Advanced level

Noun

1
The act or process by which a document is proofread. countable, uncountable
"We gave the document two proofreadings, to make absolutely sure that no errors would remain."

Verb

1
present participle and gerund of proofread form-of, gerund, participle, present

"I took on the job of proofreading."