Answer:
Or, so, it, rod, sod, rid, him, his, sit, tis, sow, row, rows, tow, tows, rods, sir, with, word, sword, words, smith, swim, moth, moths, wit, wits, its, hit, hits, hot, rot, rots, tor, tors, two, twos, whim, whims, how, mow, mows, dim, mid, dims, rim, rims, dot, dots, stow