solve : Idioms & Phrases
problem solving
- 
       noun the area of cognitive psychology that studies the processes involved in solving problems
        
      
 - 
       noun the thought processes involved in solving a problem
        
      
 
WordNet
To work, ∨ solve , a traverse 
(Naut.) , to reduce a series of courses or distances to an equivalent single one; to calculate the resultant of a traverse.