Unscramble Ierrdiphs

What is the meaning of word ierrdiphs unscrambled?

What 9 letter words can be made from letters I E R R D I P H 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 E R R D I P H S?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling errdiphs
2) Removing the letter E and unscrambling irrdiphs
3) Removing the letter R and unscrambling ierdiphs
4) Removing the letter R and unscrambling ierdiphs
5) Removing the letter D and unscrambling ierriphs
6) Removing the letter I and unscrambling ierrdphs
7) Removing the letter P and unscrambling ierrdihs
8) Removing the letter H and unscrambling ierrdips
9) Removing the letter S and unscrambling ierrdiph

More anagrams containing the letters I E R R D I P H S
ierrdipsh ierrdishp ridirphse disprirhe