Unscramble Fildup

What is the meaning of word fildup unscrambled?

What 6 letter words can be made from letters F I L D U P:

Make more words by adding or removing letters

How many 5 letter words can you make from letters F I L D U P?

1. fluid - Definition of fluid

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter F and unscrambling ildup
2) Removing the letter I and unscrambling fldup
3) Removing the letter L and unscrambling fidup
4) Removing the letter D and unscrambling filup
5) Removing the letter U and unscrambling fildp
6) Removing the letter P and unscrambling fildu

More anagrams containing the letters F I L D U P
filpdu filpud puidfl ipuldf