Definition of conceits:
(n) :
(uncountable) Overly high self-esteem; vain pride; hubris.
(n) :
(countable) A novel or fanciful idea; a whim.
(n) :
(countable, rhetoric, literature) An ingenious expression or metaphorical idea, especially in extended form or used as a literary or rhetorical device.
(n) :
The faculty of conceiving ideas; mental faculty; apprehension.
(n) :
Quickness of apprehension; active imagination; lively fancy.
(n) :
Design; pattern.