thought vs suggestion

thought and suggestion both are nouns.

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

As nouns, suggestion is a hyponym of thought; that is, suggestion is a word with a more specific, narrower meaning than thought:

thought (noun)	suggestion (noun)
the process of using your mind to consider something carefully	the act of inducing hypnosis
the content of cognition; the main thing you are thinking about	an idea that is suggested
the organized beliefs of a period or group or individual	the sequential mental process in which one thought leads to another by association
a personal belief or judgment that is not founded on proof or certainty	a proposal offered for acceptance or rejection
	persuasion formulated as a suggestion
	a just detectable amount