No, but then most of them are single letters, not words - as claimed in the question.
Bee
evokeweekwokewovebeeboweekeveeweowevowwebwoewokbewe
it , bit , mit ,a
barometer
bet, tie, bit, beet, beer
You can make over 27 words with g f e d c b a g e d c b a g f e d c b a g f e
50632
eight
Bart bontenotnonotenobneatneartotentortartontonebarbatebatbotBenbore
climbed
bed, bake, yea
You cannot make a word using only A, B, E, F & M. But you can make the following words: 3 letter word: mae 4 letter words: fame bema beam