ream
noun
uk/riːm/ usreams of sth
a very large amount of information, usually on paper:
Accountants at the firm were asked to turn over reams of financial records as part of the investigation.
reams of paperwork/paper
reams of information/data/material
[ C ] WORKPLACE, MEASURES
500 sheets of printing or writing paper:
Can you order a ream of printer paper?