Unscramble Entrisis

What is the meaning of word entrisis unscrambled?

What 8 letter words can be made from letters E N T R I S I 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 E N T R I S I 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 E and unscrambling ntrisis
2) Removing the letter N and unscrambling etrisis
3) Removing the letter T and unscrambling enrisis
4) Removing the letter R and unscrambling entisis
5) Removing the letter I and unscrambling entrsis
6) Removing the letter S and unscrambling entriis
7) Removing the letter I and unscrambling entriss
8) Removing the letter S and unscrambling entrisi

More anagrams containing the letters E N T R I S I S
entrissi entrsiis rtnesiis stniresi