4 letters:
bolz, folz, golz, ho's, hoel, hoes, hohl, hold, hole, holt, holy, hose, huls, oles, pols, volz, wolz, holz

5 letters:
boals, boles, bolls, bowls, coals, coles, doles, goals, goelz, hails, hal's, hales, halls, hauls, heals, heels, hiles, hills, hodes, hoell, hohlt, holck, holde, holds, holed, holme, holte, homes, hotze, howls, hulls, joles, kohls, moles, noles, nolls, poles, polls, roles, rolls, soles, souls, toles, tolls, voelz, voles, whole, holes

6 letters:
bolles, bowles, coal's, cole's, dole's, hailes, hale's, hall's, hayles, hell's, hill's, hills', hoelle, hohler, holmes, holzer, home's, homes', hull's, knoles, kohl's, pohl's, poll's, roll's, rowles, scholz, shoals, sholes, sowles, tolles, wholly

7 letters:
hoelzer, knoll's, knowles, poehl's, scholze, seoul's