think vs thought

think and thought both are nouns.

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

think (noun)	thought (noun)
an instance of deliberate thinking	the process of using your mind to consider something carefully
	the content of cognition; the main thing you are thinking about
	the organized beliefs of a period or group or individual
	a personal belief or judgment that is not founded on proof or certainty

think (verb)	thought (verb)
bring into a given condition by mental preoccupation
use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments
judge or regard; look upon; judge
recall knowledge from memory; have a recollection
expect, believe, or suppose
have in mind as a purpose
be capable of conscious thought
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