Unscramble Operref

What is the meaning of word operref unscrambled?

What 7 letter words can be made from letters O P E R R E F:

Make more words by adding or removing letters

How many 6 letter words can you make from letters O P E R R E F?

1. prefer - Definition of prefer

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter O and unscrambling perref
2) Removing the letter P and unscrambling oerref
3) Removing the letter E and unscrambling oprref
4) Removing the letter R and unscrambling operef
5) Removing the letter R and unscrambling operef
6) Removing the letter E and unscrambling operrf
7) Removing the letter F and unscrambling operre

More anagrams containing the letters O P E R R E F
operrfe opfeerr efrroep roerfpe