To impair the value or usefulness of
ruin, wreck, hurt, harm, injure, impair, destroy, bleach, fade, water-soak, tarnish, burn, scorch, drench, dirty, rot, smash, batter, discolor, mutilate, scratch, smudge, scuff, crack, chip, bang up, abuse, maltreat, mistreat, mar, maul, deface, disfigure, vandalize, mangle, ravage, scathe, contaminate, crumple, crush, dismantle, cheapen, blight, disintegrate, pollute, hamstring, sap, stain, tear, rip, fray, undermine, weaken, gnaw, corrode, break, split, stab, rend, slash, pierce, puncture, mildew, cripple, disable, rust, warp, maim, lacerate, wound, taint, incapacitate, bruise, spoil, wreak havoc on, wear away, defile, wrong, infect, tamper with, mess up*, gum up*; see also break 2, destroy 1, hurt 1.