Reduce
Part of speech: verb
Definition: To bring down the size, quantity, value or intensity of something; to diminish, to lower, to impair. To lose weight. To bring to an inferior rank; to degrade, to demote. To humble; to conquer; to subdue; to capture. To bring to an inferior state or condition. To decrease the liquid content of food by boiling much of its water off. To add electrons / hydrogen or to remove oxygen. To produce metal from ore by removing nonmetallic elements in a smelter. To simplify an equation or formula without changing its value. To convert to written form (Usage note: this verb almost always take the phrase "to writing").
Example sentence: Prejudice of any kind implies that you are identified with the thinking mind. It means you don't see the other human being anymore, but only your own concept of that human being. To reduce the aliveness of another human being to a concept is already a form of violence.
Concentrate
Part of speech: noun
Definition: A substance that is in a condensed form.
Part of speech: verb
Definition: , To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; -- opposed to dilute.To approach or meet in a common center; to consolidate.To focus one's thought or attention (on).
Example sentence: Chess helps you to concentrate, improve your logic. It teaches you to play by the rules and take responsibility for your actions, how to problem solve in an uncertain environment.