think vs cogitate

think is a noun but cogitate is not a noun.

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

As verbs, think and cogitate are synonyms defined as:

think and cogitate: 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 synonyms of think include cerebrate.

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

think: decide by pondering, reasoning, or reflecting
cogitate: 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 think include cerebrate, think.

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

think: ponder; reflect on, or reason about
cogitate: 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 think include cerebrate, think.

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

think: have or formulate in the mind
cogitate: 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 think include cerebrate, think.

think (noun)	cogitate (noun)
an instance of deliberate thinking

think (verb)	cogitate (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
use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments	consider carefully and deeply; reflect upon; turn over in one's mind
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