The letters in WONDERFUL make 257 words of two letters or more. The longest is UNDERFLOW at 9 letters, and the highest-scoring is UNDERFLOW at 16 points.
WONDERFUL is an anagram of UNDERFLOW, using all 9 letters. WONDERFUL has 9 letters: 3 vowels and 6 consonants, worth 16 points before any board bonuses.
Anagrams of WONDERFUL 1
underflow16
9-letter words 2
underflow16wonderful16
8-letter words 2
flounder12unfolder12
7-letter words 10
fleuron10floured11fondler11founder11frowned14reflown13refound11rewound11roundel8wounder11
6-letter words 33
downer10enduro7enfold10flowed13flower12folder10fonder10fondle10fondue10fouled10fouler9fowled13fowler12furled10louden7louder7loured7nodule7nurled7reflow12refold10refund10rolfed10rondel7rundle7undoer7undrew10unfold10weldor10woeful12wolfed13wolfer12wonder10
5-letter words 44
dowel9dower9drone6drown9endow9enrol5felon8flour8flown11flued9fluor8fondu9found9frond9frown11loden6loner5lowed9lower8lured6nerol5nuder6olden6older6owned9owner8redon6rewon8ronde6rouen5round6rowed9rowel8rowen8ruled6under6unfed9unled6unwed9uredo6woful11world9would9wound9
4-letter words 81
delf8doer5dole5done5dore5dour5down8drew8duel5dune5dure5durn5duro5enol4enow7euro4fend8feod8fern7feud8fled8flew10floe7flow10flue7fold8fond8ford8fore7foul7four7fowl10froe7frow10fuel7fund8furl7lend5leno4leud5lewd8lode5lone4lord5lore4lorn4loud5lour4lowe7lown7lude5ludo5lune4lure4nerd5node5noel4nurd5nurl4orle4owed8redo5rend5rode5role4rolf7roue4rude5rued5rule4rune4unde5undo5weld8wend8wold8wolf10word8wore7worn7wren7
3-letter words 63
del4den4dew7doe4dol4don4dor4dow7due4dun4duo4eld4elf6end4eon3ern3fed7fen6fer6feu6few9flu6foe6fon6for6fou6fro6fud7fun6fur6led4leu3low6lur3new6nod4nor3now6ode4old4ole3one3ore3oud4our3owe6owl6own6red4ref6rod4roe3row6rue3run3udo4urd4urn3wed7wen6woe6won6wud7
2-letter words 22
de3do3ed3ef5el2en2er2ln2lo2ne2no2nu2od3oe2of5on2or2ow5re2un2we5wo5
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.