To open, as what is rolled or convolved; as, to unroll cloth; to unroll a banner.

To remove from a roll or register, as a name.

unroll, unfold, or spread out or be unrolled, unfolded, or spread out from a furled state; "unfurl a banner"

To display; to reveal.

reverse the winding or twisting of; "unwind a ball of yarn"

vt. To replicate the body of a loop one or more times (while correspondingly reducing the number of iterations), to improve efficiency by reducing loop control overhead (but at the expense of increased code size).