What do the following words have in common?

1. PAR
2. ARC
3. BRIG
4. BALL
5. CHAR
6. BLOCK
7. STOCK

Answer:

Each word can be followed by ADE to make a new word:

1. PARADE
2. ARCADE
3. BRIGADE
4. BALLADE
5. CHARADE
6. BLOCKADE
7. STOCKADE 

Credit:
Merle Baker
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