Unscramble Isopref

What is the meaning of word isopref unscrambled?

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

Make more words by adding or removing letters

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

1. poiser - Definition of poiser

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sopref
2) Removing the letter S and unscrambling iopref
3) Removing the letter O and unscrambling ispref
4) Removing the letter P and unscrambling isoref
5) Removing the letter R and unscrambling isopef
6) Removing the letter E and unscrambling isoprf
7) Removing the letter F and unscrambling isopre

More anagrams containing the letters I S O P R E F
isoprfe isorefp rfeisop fpeiros