Unscramble Insgrep

What is the meaning of word insgrep unscrambled?

What 7 letter words can be made from letters I N S G R E P:

1. pingers - Definition of pingers

2. springe - Definition of springe

Make more words by adding or removing letters

How many 6 letter words can you make from letters I N S G R E P?

1. genips - Definition of genips

2. gripes - Definition of gripes

3. Ingres - Definition of Ingres

4. Pernis - Definition of Pernis

5. pinger - Definition of pinger

6. reigns - Definition of reigns

7. renigs - Definition of renigs

8. repins - Definition of repins

9. resign - Definition of resign

10. ripens - Definition of ripens

11. sering - Definition of sering

12. signer - Definition of signer

13. Singer - Definition of Singer

14. sniper - Definition of sniper

15. spring - Definition of spring

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling nsgrep
2) Removing the letter N and unscrambling isgrep
3) Removing the letter S and unscrambling ingrep
4) Removing the letter G and unscrambling insrep
5) Removing the letter R and unscrambling insgep
6) Removing the letter E and unscrambling insgrp
7) Removing the letter P and unscrambling insgre

More anagrams containing the letters I N S G R E P
insgrpe inspegr enirpsg pigsren