Four letter words starting with B and ending with W are blew, blow, brow, and brew.
Some four letter words starting with S and ending with F are:selfserfsurf
herb.
abedbleddeedfledfeedheedneedpeedpledreedseedsledteedtredusedweedIit says "starting with "ed", not ending in it.EDIT
zapp
You tell me :P
Four letter words starting with B and ending with W are blew, blow, brow, and brew.
Some four letter words starting with S and ending with F are:selfserfsurf
Urdu, unau
herb.
abedbleddeedfledfeedheedneedpeedpledreedseedsledteedtredusedweedIit says "starting with "ed", not ending in it.EDIT
each
ecru
zapp
Some four letter words starting with S using the letters DEELLORRY are:seedseersellsledsoldsore
Are you sure it ends in 'o'? A muon is a four letter subatomic particle.
Four letter words using those letters and ending in 'l' are:haulhealteal