Unscramble Rphierids

What is the meaning of word rphierids unscrambled?

What 9 letter words can be made from letters R P H I E R I D S:

1. ridership - Definition of ridership

Make more words by adding or removing letters

How many 8 letter words can you make from letters R P H I E R I D S?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling phierids
2) Removing the letter P and unscrambling rhierids
3) Removing the letter H and unscrambling rpierids
4) Removing the letter I and unscrambling rpherids
5) Removing the letter E and unscrambling rphirids
6) Removing the letter R and unscrambling rphieids
7) Removing the letter I and unscrambling rphierds
8) Removing the letter D and unscrambling rphieris
9) Removing the letter S and unscrambling rphierid

More anagrams containing the letters R P H I E R I D S
rphierisd rphiersdi piirdehsr errpshidi