Cluorofluorocarbons
The letters NEPKEUFVDOUBGNUCN can spell 254 English words. The longest are :denounceconvenedbeckonedunopenedconvenedungeonbuncoedboundenpouncedbouncedunbound
There is no anagram. The letters can spell "confirm I spun." The longest words are incursion and unionism.
The longest words are odium and mould.
Using all of the letters you can spell the words "issuant" and "sustain".
The longest words are watt, what, hath, that, and thaw.
The longest words are photo and tooth.
The longest are two five-letter words: cloud and could.
The letters can spell phrases such as "foxy unit hideout" but nothing very apt. The longest words that you can spell are foxhound, outfoxed, notified, and unfitted.
You cannot spell any words with these letters. The longest possible words are cheap and peach.
There are no words that can be spelled using all of these letters. The longest possible words are hewer, hiree and where.
The letters 'tofn' can be unscrambled to spell the word font. The next possible longest words are not, oft and ton.