(rēm) noun
1. Twenty quires of paper; properly, 480 sheets (a short ream), but often 500 sheets (a long ream) or, in a printer's or perfect ream, 516 sheets.
2. plural Colloq. A prodigious amount of printed, written, or spoken material: reams of footnotes. [<OF reyme <Sp. resma <Arabic rizmah packet <raxama pack together]

(rēm) v.t.
1. To increase the size of (a hole).
2. To enlarge or taper (a hole) with a rotating cutter or reamer.
3. To turn or roll over the edge of: to ream a cartridge shell.
4. To get rid of (a defect) by reaming. [OE rēman enlarge, make room. Akin to ROOM.]

(rēm) noun Scot. & Brit. Dial.
Cream; froth; foam.
—v.t. Scot. To skim, as cream.