削 （サク） plane, sharpen, whittle, pare, shave (leather), scrape off, crossout, reduce, curtail

削減 （サクゲン） cut, reduction, curtailment

掘削 （クッサク） digging out, excavation

開削 （カイサク） excavation, cutting, digging

削る （けずる） to shave (wood, leather, etc.), to sharpen (e.g. pencil), to plane, to whittle, to pare, to scrape off, to erode, to cut down (budget, expenses, staff, time, etc.), to curtail, to reduce, to delete, to erase, to remove, to cross out, to strike out

削る （はつる） to shave off (esp. concrete), to take a percentage, to take a cut

削ぐ （そぐ） to chip (off), to shave (off), to slice (off), to sharpen, to dampen (e.g. enthusiasm), to discourage, to weaken, to reduce