The letters in "epic moment" can be used to create the anagrams "temp income" and "once met imp" among others. Using just those 10 letters you can create over 130 English words, the longest being the 9-letter "impotence".
About 120,000 words or 300 pages
These are the words that I can spell with breakfast:Aabaftabetabreastafaraftafterareareaarkartasaskasteratatebaabakebarbarebarkbasebaskbastebatbatebeakbeastbeatbedbetbrakebratbreakeareasteatfafakefarfarefastfatfatefearfeastfeatfreakfretraberaftrakesabresafesakesateseasearseatstabstakestarstaresteakstreak
13
Don't know how many. The only one that I can think of at the moment is levees. If you don't need to use all the letters, eve and elves also come to mind.
The letters NEPKEUFVDOUBGNUCN can spell 254 English words. The longest are :denounceconvenedbeckonedunopenedconvenedungeonbuncoedboundenpouncedbouncedunbound
a hundred
12
Words created from the letters in cooperation [noitarepooc] might be:aceactactionapeareatartcarecopcooncoopcrapicenicenitnopenotnotepactparepatpearpitpotpricetareteartontonetoretrapLetters: cooperation [noitarepooc]
2
deer
superitussitspitsupsuitsuitsspitsitssitspursepursespriestprieststutortutorspressupupsetupsetsstopstopsstepstepsripripsstripstripstourtourstouristtourists
see,