Unscramble Greex

What is the meaning of word greex unscrambled?

What 5 letter words can be made from letters G R E E X:

1. regex - Definition of regex

Make more words by adding or removing letters

How many 4 letter words can you make from letters G R E E X?

1. eger - Definition of eger

2. gree - Definition of gree

Which 4 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter G and unscrambling reex
2) Removing the letter R and unscrambling geex
3) Removing the letter E and unscrambling grex
4) Removing the letter E and unscrambling grex
5) Removing the letter X and unscrambling gree

More anagrams containing the letters G R E E X
grexe grxee exerg gxeer