Unscramble Itsing

What is the meaning of word itsing unscrambled?

What 6 letter words can be made from letters I T S I N G:

1. SIGINT - Definition of SIGINT

2. siting - Definition of siting

Make more words by adding or removing letters

How many 5 letter words can you make from letters I T S I N G?

1. intis - Definition of intis

2. sting - Definition of sting

3. tings - Definition of tings

Which 5 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling tsing
2) Removing the letter T and unscrambling ising
3) Removing the letter S and unscrambling iting
4) Removing the letter I and unscrambling itsng
5) Removing the letter N and unscrambling itsig
6) Removing the letter G and unscrambling itsin

More anagrams containing the letters I T S I N G
itsngi itsnig stgnii gnisti