Plough, Drought
Plough
Tough
scruff
Dough Though Plough
Breakthrough, clickthrough, feedthrough, readthrough, walkthrough,
Plough
The word "through" rhymes with "stew" and ends in -ough.
Dough.
Tough
scruff
Beau Blow Toe
caught
enough
Buff Bluff Scruff
scruff
Dough Though Plough
The word "tough" rhymes with "bluff."