Unscramble Istaddr

What is the meaning of word istaddr unscrambled?

What 7 letter words can be made from letters I S T A D D R:

Make more words by adding or removing letters

How many 6 letter words can you make from letters I S T A D D R?

1. triads - Definition of triads

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling staddr
2) Removing the letter S and unscrambling itaddr
3) Removing the letter T and unscrambling isaddr
4) Removing the letter A and unscrambling istddr
5) Removing the letter D and unscrambling istadr
6) Removing the letter D and unscrambling istadr
7) Removing the letter R and unscrambling istadd

More anagrams containing the letters I S T A D D R
istadrd istardd idtrdsa rdsitad