Unscramble Subftree

What is the meaning of word subftree unscrambled?

What 8 letter words can be made from letters S U B F T R E E:

Make more words by adding or removing letters

How many 7 letter words can you make from letters S U B F T R E E?

1. befrets - Definition of befrets

2. refutes - Definition of refutes

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter S and unscrambling ubftree
2) Removing the letter U and unscrambling sbftree
3) Removing the letter B and unscrambling suftree
4) Removing the letter F and unscrambling subtree
5) Removing the letter T and unscrambling subfree
6) Removing the letter R and unscrambling subftee
7) Removing the letter E and unscrambling subftre
8) Removing the letter E and unscrambling subftre

More anagrams containing the letters S U B F T R E E
subreeft subreetf rbteesuf tsrfeube