Clear this solution

Cent
Chin
Chink
Chit
Cine
Cite
Echt
Etch
Ethic
Hent
Hint
Inch
Itch
Kench
Ketch
Kitchen
Kite
Kith
Knit
Neck
Nice
Niche
Nick
Nike
Tech
Tench
Then
Thick
Thin
Think
Tick