Unscramble Usingpref

What is the meaning of word usingpref unscrambled?

What 9 letter words can be made from letters U S I N G P R E F:

1. perfusing - Definition of perfusing

Make more words by adding or removing letters

How many 8 letter words can you make from letters U S I N G P R E F?

1. gunfires - Definition of gunfires

2. perusing - Definition of perusing

3. refusing - Definition of refusing

4. supering - Definition of supering

Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling singpref
2) Removing the letter S and unscrambling uingpref
3) Removing the letter I and unscrambling usngpref
4) Removing the letter N and unscrambling usigpref
5) Removing the letter G and unscrambling usinpref
6) Removing the letter P and unscrambling usingref
7) Removing the letter R and unscrambling usingpef
8) Removing the letter E and unscrambling usingprf
9) Removing the letter F and unscrambling usingpre

More anagrams containing the letters U S I N G P R E F
usingprfe usingrefp npsurfgei gnfispure