concentrate in WordNet English dictionary

1. cook until very little liquid is left
   "The cook reduced the sauce by boiling it for a long time"
   reduce  boil down  concentrate 
   
2. be cooked until very little liquid is left
   "The sauce should reduce to one cup"
   boil down  reduce  decoct  concentrate 
   
3. direct one's attention on something
   "Please focus on your studies and not on your hobbies"
   concentrate  focus  center  centre  pore  rivet 
   
4. make central
   "The Russian government centralized the distribution of food"
   centralize  centralise  concentrate 
   
5. make denser, stronger, or purer
   "concentrate juice"
   concentrate 
   
6. make more concise
   "condense the contents of a book into a summary"
   digest  condense  concentrate 
   
7. compress or concentrate
   "Congress condensed the three-year plan into a six-month plan"
   condense  concentrate  contract 
   
8. draw together or meet in one common center
   "These groups concentrate in the inner cities"
   concentrate 
   

1. a concentrated example of something
   "the concentrate of contemporary despair"
   concentrate 
   
2. a concentrated form of a foodstuff; the bulk is reduced by removing water
   concentrate 
   
3. the desired mineral that is left after impurities have been removed from mined ore
   dressed ore  concentrate