1. 
   prolong
   [v] - lengthen or extend in duration or space 2. [v] - lengthen in time
   Found op http://www.webdictionary.co.uk/definition.php?query=prolong
   
   
2. 
   Prolong
   Pro·long' transitive verb [ imperfect & past participle Prolonged ; present participle & verbal noun Prolonging .] [ French prolonger , Latin prolongare ; pro before...
   Found op http://www.encyclo.co.uk/webster/P/172
   
   
3. 
   Prolong
   • (a.) To lengthen in time; to extend the duration of; to draw out; to continue; as, to prolong one`s days. • (a.) To extend in space or length; as, to prolong a line. • (a.) To put off to a distant time; to postpone.
   Found op http://thinkexist.com/dictionary/meaning/prolong/
   
   
4. 
   prolong
   prolong 1. To lengthen or to extend in duration or space: 'The doctor wanted to prolong the treatment of the patient.' 2. To lengthen in time; to cause to be or to last longer: 'We prolonged our stay at the seashore.' 3. Etymology: from Old French prolonguer (13th century); from Late Latin prolong...
   Found op http://www.wordinfo.info/words/index/info/view_unit/1207/3
   
   
5. 
   prolong
   1) Drag out 2) Draw out 3) Extend 4) Lengthen 5) Lengthen in duration 6) Protract 7) Stretch out
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/prolong/1
   
   

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