The following words share an unusual property. Can you determine what it is?

HIRE
HOLD
BRAIN
WANING
HOMELY

HINT:
It has to do with changing a single letter in each word.

Answers:

Changing a single letter in each word will create a word that is the opposite of the original word.

HIRE - FIRE
HOLD - FOLD  (as in poker)
BRAIN - BRAWN
WANING - WAXING  
HOMELY - COMELY

Credit: Will Shortz
NPR Weekend Edition Sunday Puzzle
June 10, 2012