definition of
concentrate

[1] #1 concentrate v. make denser, stronger, or purer; "concentrate juice". wn

[2] #2 concentrate v. [focus, center, centre, pore, rivet] direct one's attention on something; "Please focus on your studies and not on your hobbies". wn

[3] #3 concentrate v. [centralize, centralise] make central; "The Russian government centralized the distribution of food". wn

[4] #4 concentrate n. [dressed ore] the desired mineral that is left after impurities have been removed from mined ore. wn

[5] #5 concentrate v. [digest, condense] make more concise; "condense the contents of a book into a summary". wn