Ache
Aches
Acts
Case
Cash
Cast
Caste
Cats
Chase
Chaste
Chat
Cheat
Chest
Each
East
Eats
Echt
Etch
Hast
Haste
Hate
Hats
Heat
Hest
Sate
Scat
Scathe
Sect
Seta
Seth
Shea
Teach
Tech