Opposite side of heads (5)
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I believe the answer is:
tails
(Other definitions for tails that I've seen before include "Follows closely" , "Ends" , "Animals' extremities" , "Coin-tossing call" , "A possible fall of the pound" .)
I believe the answer is:
tails
(Other definitions for tails that I've seen before include "Follows closely" , "Ends" , "Animals' extremities" , "Coin-tossing call" , "A possible fall of the pound" .)