Seven-letter words - change zero to two letters to make a new word (Part 1)

hairdos

raiders

dairies

fairies

ferries

freesia

Frisbee

(Shh! my dog is listening; if she hears this, I have to play you-know-what for the next two hours!)

friseur

(rare in English
similar to the French “friseur”
or the Romanian “frizer”)

(Works for me)

BIP: furrier

terrier

Perrier

prepare

appears

arrears

surreal

cereals

realist

slither

zithers

bothers