80 and they're all on dictionary.com\n\nace, act, age, amp, ape, apt, arc, are, ark, arm, art, ate, cam, cap, car, cat, cep, ear, eat, era, erg, eta, eth, gae, gam, gap, gar, gat, gem, get, hae, hag, ham, hap, hat, hem, hep, her, het, kae, kat, kea, keg, kep, mac, mae, mag, map, mar, mat, met, pac, pah, pam, par, pat, pea, peg, peh, per, pet, pht, rag, rah, ram, rap, rat, rec, reg, rem, rep, ret, tae, tag, tam, tap, tar, tea, teg, the