dilute vs thin out

dilute is an adjective but thin out is not an adjective.

Word	Noun	Adjective	Verb	Adverb
dilute	No	Yes	Yes	No
thin out	No	No	Yes	No

As verbs, dilute and thin out are synonyms defined as:

dilute and thin out: lessen the strength or flavor of a solution or mixture

Other synonyms of dilute include cut, reduce, thin.

dilute (adjective)	thin out (adjective)
reduced in strength or concentration or quality or purity

dilute (verb)	thin out (verb)
lessen the strength or flavor of a solution or mixture	make sparse
corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones	become sparser
	lessen the strength or flavor of a solution or mixture