from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To unwind and open (something rolled up).
- transitive v. To unfold and present to view; reveal.
- intransitive v. To become unrolled.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To straighten something that has been rolled, twisted or curled.
- v. To emerge, be revealed or become apparent; to unfold.
- v. (computing) To replace (a loop in a program) with a repetitive sequence of the individual instructions that the loop would carry out, sometimes used as an optimization.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To open, as what is rolled or convolved.
- transitive v. To display; to reveal.
- transitive v. To remove from a roll or register, as a name.
from The Century Dictionary and Cyclopedia
- To open, as something rolled or folded: as, to unroll cloth.
- To display; lay open. To strike off from a roll or register.
- To become straight or loose, as in passing from a rolled condition.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. reverse the winding or twisting of
- v. unroll, unfold, or spread out or be unrolled, unfolded, or spread out from a furled state
From un- + roll. (Wiktionary)