Unscramble Rnomu

What is the meaning of word rnomu unscrambled?

What 5 letter words can be made from letters R N O M U:

1. mourn - Definition of mourn

2. Munro - Definition of Munro

Make more words by adding or removing letters

How many 4 letter words can you make from letters R N O M U?

1. morn - Definition of morn

2. muon - Definition of muon

3. norm - Definition of norm

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling nomu
2) Removing the letter N and unscrambling romu
3) Removing the letter O and unscrambling rnmu
4) Removing the letter M and unscrambling rnou
5) Removing the letter U and unscrambling rnom

More anagrams containing the letters R N O M U
rnoum rnumo mnuor ruonm