loosen

v 1: make loose or looser; "loosen the tension on a rope" [syn: {loose}]

[ant: {stiffen}]

2: disentangle and raise the fibers of; "tease wool" [syn: {tease},

{tease apart}]

3: make less dense

4: become loose or looser; "The noose loosened" [syn: {relax}]

[ant: {stiffen}]