conceit

US /kənˈsiːt/
UK /kənˈsiːt/
"conceit" picture
1.

excessive pride in oneself

:
His conceit made him unpopular among his colleagues.
She spoke with an air of utter conceit.
2.

a fanciful notion; an elaborate or fanciful metaphor, especially in poetry

:
The poet used a complex conceit to describe love as a journey.
His argument was based on a clever but ultimately flawed conceit.