We can actually deduce here that "Conceit” is best defined as a lengthy or extended <u>metaphor.</u>
<h3>What is extended metaphor?</h3>
Extended metaphor is actually known to be the version of metaphor that is seen over the multiple lines or stanzas of prose or poetry. It extends over many lines in a prose. It is known to be a "conceit" or "sustained" metaphor.
In extended metaphor, the author uses a single metaphor at length through multiple lines in a story or poem.
Thus, we see here that "conceit" is best defined as a lengthy or extended metaphor.