Unscramble Dtmf

What is the meaning of word dtmf unscrambled?

What 4 letter words can be made from letters D T M F:

Make more words by adding or removing letters

How many 3 letter words can you make from letters D T M F?

1. MDF - Definition of MDF

Which 3 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter D and unscrambling tmf
2) Removing the letter T and unscrambling dmf
3) Removing the letter M and unscrambling dtf
4) Removing the letter F and unscrambling dtm

More anagrams containing the letters D T M F
fdmt fdtm tmfd tdmf