Unscramble Ipmref

What is the meaning of word ipmref unscrambled?

What 6 letter words can be made from letters I P M R E F:

Make more words by adding or removing letters

How many 5 letter words can you make from letters I P M R E F?

1. Fermi - Definition of Fermi

2. prime - Definition of prime

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling pmref
2) Removing the letter P and unscrambling imref
3) Removing the letter M and unscrambling ipref
4) Removing the letter R and unscrambling ipmef
5) Removing the letter E and unscrambling ipmrf
6) Removing the letter F and unscrambling ipmre

More anagrams containing the letters I P M R E F
ipmrfe iprefm rpimfe pfremi