meditate vs puzzle

meditate is not a noun while puzzle is a noun.

Word	Noun	Adjective	Verb	Adverb
meditate	No	No	Yes	No
puzzle	Yes	No	Yes	No

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

meditate: reflect deeply on a subject
puzzle: be uncertain about; think about without fully understanding or being able to decide

meditate (noun)	puzzle (noun)
	a game that tests your ingenuity
	a particularly baffling problem that is said to have a correct solution

meditate (verb)	puzzle (verb)
reflect deeply on a subject	be a mystery or bewildering to
think intently and at length, as for spiritual purposes	be uncertain about; think about without fully understanding or being able to decide