1. 
   furthest
   [adv] - to the greatest degree or extent or most advanced stage (`furthest` is used more often than `farthest` in this abstract sense)
   Found op http://www.webdictionary.co.uk/definition.php?query=furthest
   
   
2. 
   Furthest
   Fur'thest adjective superl. Most remote; most in advance; farthest. See Further , adjective
   Found op http://www.encyclo.co.uk/webster/F/89
   
   
3. 
   Furthest
   Fur'thest adverb At the greatest distance; farthest.
   Found op http://www.encyclo.co.uk/webster/F/89
   
   
4. 
   Furthest
   • (a.) superl. Most remote; most in advance; farthest. See Further, a. • (adv.) At the greatest distance; farthest.
   Found op http://thinkexist.com/dictionary/meaning/furthest/
   
   
5. 
   furthest
   1) Extreme 2) Far 3) Farthermost 4) Farthest 5) Farthest away 6) Furthermost 7) Furthest away 8) Most advanced 9) Outermost 10) Outmost 11) Remotest 12) Utmost 13) Uttermost
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/furthest/1
   
   

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