conceit vs figure of speech

conceit and figure of speech both are nouns.

Word	Noun	Adjective	Verb	Adverb
conceit	Yes	No	No	No
figure of speech	Yes	No	No	No

As nouns, figure of speech is a hypernym of conceit; that is, figure of speech is a word with a broader meaning than conceit:

conceit: an elaborate poetic image or a far-fetched comparison of very dissimilar things
figure of speech: language used in a figurative or nonliteral sense

Other hypernyms of conceit include figure, image, trope.

conceit (noun)	figure of speech (noun)
the trait of being unduly vain and conceited; false pride	language used in a figurative or nonliteral sense
a witty or ingenious turn of phrase
an artistic device or effect
an elaborate poetic image or a far-fetched comparison of very dissimilar things
feelings of excessive pride