The Clue
Printers' trial sheets (6 letter answer)
The Answer
PROOFS
Tags
Notes
The answer PROOFS is rarely seen, appearing only about once every 2100 puzzles.
Related Clues
Checks for errors
Photograph prints
Print trials
Test photos
Test prints
Definition
PROOF as a noun:
1. (proof, cogent evidence) = any factual evidence that helps to establish the truth of something; "if you have any proof for what you say, now is the time to produce it"
2. a formal series of statements showing that if one thing is true something else necessarily follows from it
3. a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)
4. (proof, test copy, trial impression) = (printing) an impression made to check for errors
5. a trial photographic print from a negative
6. (validation, proof, substantiation) = the act of validating; finding or testing the truth of something
PROOF as a verb:
1. make or take a proof of, such as a photographic negative, an etching, or typeset
2. knead to reach proper lightness; "proof dough"
3. (proofread, proof) = read for errors; "I should proofread my manuscripts"
4. activate by mixing with water and sometimes sugar or milk; "proof yeast"
5. make resistant (to harm); "proof the materials against shrinking in the dryer"