Unscramble Irpihders

What is the meaning of word irpihders unscrambled?

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

1. ridership - Definition of ridership

Make more words by adding or removing letters

How many 8 letter words can you make from letters I R P I H D E R S?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling rpihders
2) Removing the letter R and unscrambling ipihders
3) Removing the letter P and unscrambling irihders
4) Removing the letter I and unscrambling irphders
5) Removing the letter H and unscrambling irpiders
6) Removing the letter D and unscrambling irpihers
7) Removing the letter E and unscrambling irpihdrs
8) Removing the letter R and unscrambling irpihdes
9) Removing the letter S and unscrambling irpihder

More anagrams containing the letters I R P I H D E R S
irpihdesr irpihdres psedrrhii ihirsdper