Unscramble Errphsdii

What is the meaning of word errphsdii unscrambled?

What 9 letter words can be made from letters E R R P H S D 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 P H S D 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 rrphsdii
2) Removing the letter R and unscrambling erphsdii
3) Removing the letter R and unscrambling erphsdii
4) Removing the letter P and unscrambling errhsdii
5) Removing the letter H and unscrambling errpsdii
6) Removing the letter S and unscrambling errphdii
7) Removing the letter D and unscrambling errphsii
8) Removing the letter I and unscrambling errphsdi
9) Removing the letter I and unscrambling errphsdi

More anagrams containing the letters E R R P H S D I I
errphsidi errphsiid iehrrsidp dirresphi