Unscramble Costref

What is the meaning of word costref unscrambled?

What 7 letter words can be made from letters C O S T R E F:

Make more words by adding or removing letters

How many 6 letter words can you make from letters C O S T R E F?

1. corset - Definition of corset

2. Cortef - Definition of Cortef

3. Cortes - Definition of Cortes

4. coster - Definition of coster

5. crofts - Definition of crofts

6. escort - Definition of escort

7. fetors - Definition of fetors

8. forces - Definition of forces

9. forest - Definition of forest

10. fortes - Definition of fortes

11. foster - Definition of foster

12. fresco - Definition of fresco

13. rectos - Definition of rectos

14. scoter - Definition of scoter

15. sector - Definition of sector

16. softer - Definition of softer

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter C and unscrambling ostref
2) Removing the letter O and unscrambling cstref
3) Removing the letter S and unscrambling cotref
4) Removing the letter T and unscrambling cosref
5) Removing the letter R and unscrambling costef
6) Removing the letter E and unscrambling costrf
7) Removing the letter F and unscrambling costre

More anagrams containing the letters C O S T R E F
costrfe cotefrs tcfsore fctoser