1. 
   unpin
   [v] - remove the pins from
   Found op http://www.webdictionary.co.uk/definition.php?query=unpin
   
   
2. 
   Unpin
   • (v. t.) To loose from pins; to remove the pins from; to unfasten; as, to unpin a frock; to unpin a frame.
   Found op http://thinkexist.com/dictionary/meaning/unpin/
   
   
3. 
   unpin
   1) Detach 2) Detach, in a way 3) Free, as clothing 4) Loose 5) Loosen 6) Loosen, in a way 7) Remove a corsage 8) Remove a diaper 9) Remove an old-time diaper, e.g. 10) Remove as a corsage, 11) Remove the pins from 12)
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/unpin/1
   
   

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