Another word game

[toothless-dog]

If you want to give it a go.

You need to alter one letter or add or leave off one letter to the word.
Like this,
Shop
ship
shin
skin
king etc

[countessalmirena]

defroster (added F)

[katistrophik]

rostered

[countessalmirena]

fostered (R changed to F)

[twyngwyn]

defrost 

[nicnacs_4u]

frosty

[twyngwyn]

forest 

[countessalmirena]

efforts (added an F)

[nicnacs_4u]

fortes

[katistrophik]

strife

[nicnacs_4u]

strike