Unscramble Isterins

What is the meaning of word isterins unscrambled?

What 8 letter words can be made from letters I S T E R I N S:

1. insister - Definition of insister

2. sinister - Definition of sinister

Make more words by adding or removing letters

How many 7 letter words can you make from letters I S T E R I N S?

1. estrins - Definition of estrins

2. inserts - Definition of inserts

3. sinters - Definition of sinters

4. Sistine - Definition of Sistine

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling sterins
2) Removing the letter S and unscrambling iterins
3) Removing the letter T and unscrambling iserins
4) Removing the letter E and unscrambling istrins
5) Removing the letter R and unscrambling isteins
6) Removing the letter I and unscrambling isterns
7) Removing the letter N and unscrambling isteris
8) Removing the letter S and unscrambling isterin

More anagrams containing the letters I S T E R I N S
isterisn isternis eisistrn seisirtn