Unscramble Irphredis

What is the meaning of word irphredis unscrambled?

What 9 letter words can be made from letters I R P H R E D I 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 H R E D I S?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling rphredis
2) Removing the letter R and unscrambling iphredis
3) Removing the letter P and unscrambling irhredis
4) Removing the letter H and unscrambling irpredis
5) Removing the letter R and unscrambling irphedis
6) Removing the letter E and unscrambling irphrdis
7) Removing the letter D and unscrambling irphreis
8) Removing the letter I and unscrambling irphreds
9) Removing the letter S and unscrambling irphredi

More anagrams containing the letters I R P H R E D I S
irphredsi irphreids isierrpdh prsdihrei