apers
apres
asper
pares
parse
pears
presa
rapes
reaps
spare
spear
A close second is the word "least" which can be rearranged into 10 words:
least
setal
slate
stale
steal
stela
taels
tales
teals
tesla
The chart below lists all the most rearrangeable words. Note in particular that the most "rearrangeable bingo" is "retains." Also note that this information is in regards to the OWL2 word list.
number letters of words ------- -------- spear 11 least 10 retains 9 insert 9 scrape 9 resent 8 prise 8 laser 8 lapse 8 east 8
SPEAR: apers, apres, asper, pares, parse, pears, presa, rapes, reaps, spare, spear
LEAST: least, setal, slate, stale, steal, stela, taels, tales, teals, tesla
RETAINS: anestri, antsier, nastier, ratines, retains, retinas, retsina, stainer, stearin
INSERT: estrin, inerts, insert, inters, niters, nitres, sinter, triens, trines
SCRAPE: capers, crapes, escarp, pacers, parsec, recaps, scrape, secpar, spacer
RESENT: enters, nester, renest, rentes, resent, tenser, ternes, treens
PRISE: peris, piers, pries, prise, ripes, speir, spier, spire
LASER: arles, earls, lares, laser, lears, rales, reals, seral
LAPSE: lapse, leaps, pales, peals, pleas, salep, sepal, spale
EAST: ates, east, eats, etas, sate, seat, seta, teas
This list is original research from ScrabbleGuru.com. Come visit us for more!