concentrate vs think

concentrate and think both are nouns.

Word	Noun	Adjective	Verb	Adverb
concentrate	Yes	No	Yes	No
think	Yes	No	Yes	No

As verbs, think is a hypernym of concentrate; that is, think is a word with a broader meaning than concentrate:

concentrate: direct one's attention on something
think: use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

Other hypernyms of concentrate include cerebrate, cogitate.

As verbs, think is a hyponym of concentrate; that is, think is a word with a more specific, narrower meaning than concentrate:

Other hyponyms of concentrate include absorb, engross, engulf, immerse, plunge, soak up, steep, recall, zoom in, hear, listen, take heed.

concentrate (noun)	think (noun)
a concentrated example of something	an instance of deliberate thinking
a concentrated form of a foodstuff; the bulk is reduced by removing water
the desired mineral that is left after impurities have been removed from mined ore

concentrate (verb)	think (verb)
cook until very little liquid is left	bring into a given condition by mental preoccupation
make denser, stronger, or purer	use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
make central	judge or regard; look upon; judge
be cooked until very little liquid is left	recall knowledge from memory; have a recollection
make more concise	expect, believe, or suppose
compress or concentrate	have in mind as a purpose
direct one's attention on something	be capable of conscious thought
draw together or meet in one common center	focus one's attention on a certain state
	decide by pondering, reasoning, or reflecting
	ponder; reflect on, or reason about
	have or formulate in the mind
	dispose the mind in a certain way
	imagine or visualize