plan vs think

plan and think both are nouns.

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

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

plan: make plans for 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 plan include cerebrate, cogitate.

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

Other hypernyms of plan include intend, mean.

plan (noun)	think (noun)
scale drawing of a structure	an instance of deliberate thinking
a series of steps to be carried out or goals to be accomplished
an arrangement scheme

plan (verb)	think (verb)
make plans for something	bring into a given condition by mental preoccupation
have the will and intention to carry out some action	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 or work out a plan for; devise	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