Unscramble Usingref

What is the meaning of word usingref unscrambled?

What 8 letter words can be made from letters U S I N G R E F:

1. gunfires - Definition of gunfires

2. refusing - Definition of refusing

Make more words by adding or removing letters

How many 7 letter words can you make from letters U S I N G R E F?

1. figures - Definition of figures

2. fingers - Definition of fingers

3. fringes - Definition of fringes

4. gunfire - Definition of gunfire

5. infuser - Definition of infuser

6. reusing - Definition of reusing

7. surfing - Definition of surfing

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter U and unscrambling singref
2) Removing the letter S and unscrambling uingref
3) Removing the letter I and unscrambling usngref
4) Removing the letter N and unscrambling usigref
5) Removing the letter G and unscrambling usinref
6) Removing the letter R and unscrambling usingef
7) Removing the letter E and unscrambling usingrf
8) Removing the letter F and unscrambling usingre

More anagrams containing the letters U S I N G R E F
usingrfe usinrefg rnufgise griufsne