Letters that make muts
s, m, t, u
are letters that make 'muts'
Words within muts
mu, ut, mut, uts, UT
are words within 'muts'
Anagrams of muts
must, stum, smut
are anagrams of 'muts'
Words created by adding a letter to the beginning or end of muts
Smuts
is a word created by adding a letter to 'muts'