The following phrase and compound words share an unusual quality. Can you determine what it is?

1. GOLD GLOVE
2. OUTHOUSE
3. WALLBOARD

Answer:

The first and last word of the phrase and the first and last half of each compound word can be preceded by WHITE:

1. WHITE GOLD - WHITE GLOVE
2. WHITEOUT - WHITE HOUSE
3. WHITEWALL - WHITEBOARD

Credit:
LA Times Crossword
June 22, 2016
Ellen Leuschner and Mary Lou Guizzo 
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