Unscramble Optreens

What is the meaning of word optreens unscrambled?

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

Make more words by adding or removing letters

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

1. estrone - Definition of estrone

2. openers - Definition of openers

3. openest - Definition of openest

4. penster - Definition of penster

5. pentose - Definition of pentose

6. pereons - Definition of pereons

7. posteen - Definition of posteen

8. postern - Definition of postern

9. poteens - Definition of poteens

10. present - Definition of present

11. Preston - Definition of Preston

12. reopens - Definition of reopens

13. repents - Definition of repents

14. serpent - Definition of serpent

15. Sterope - Definition of Sterope

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter O and unscrambling ptreens
2) Removing the letter P and unscrambling otreens
3) Removing the letter T and unscrambling opreens
4) Removing the letter R and unscrambling opteens
5) Removing the letter E and unscrambling optrens
6) Removing the letter E and unscrambling optrens
7) Removing the letter N and unscrambling optrees
8) Removing the letter S and unscrambling optreen

More anagrams containing the letters O P T R E E N S
optreesn optrenes snoterpe sptneeor