Unscramble Errdphsii

What is the meaning of word errdphsii unscrambled?

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

1. ridership - Definition of ridership

Make more words by adding or removing letters

How many 8 letter words can you make from letters E R R D P H S I I?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter E and unscrambling rrdphsii
2) Removing the letter R and unscrambling erdphsii
3) Removing the letter R and unscrambling erdphsii
4) Removing the letter D and unscrambling errphsii
5) Removing the letter P and unscrambling errdhsii
6) Removing the letter H and unscrambling errdpsii
7) Removing the letter S and unscrambling errdphii
8) Removing the letter I and unscrambling errdphsi
9) Removing the letter I and unscrambling errdphsi

More anagrams containing the letters E R R D P H S I I
errdpihis errdpihsi dishprrei drrihsepi