Webster's Revised Unabridged Dictionary · 1913

Conceit

Conceit , noun

[Through French, from Latin conceptus a conceiving, conception, from concipere to conceive: compare Old French p. p. nom. conciez conceived. See Conceive, and compare Concept, Deceit.]

1.
That which is conceived, imagined, or formed in the mind; idea; thought; image; conception.
In laughing, there ever procedeth a conceit of somewhat ridiculous. — Bacon
A man wise in his own conceit. — Bible (KJV) - Proverb xxvi. 12
2.
Faculty of conceiving ideas; mental faculty; apprehension; as, a man of quick conceit. [Obsolete]
How often, alas! did her eyes say unto me that they loved! and yet I, not looking for such a matter, had not my conceit open to understand them. — Sir P. Sidney
3.
Quickness of apprehension; active imagination; lively fancy.
His wit's as thick as Tewksbury mustard; there's more conceit in him than is in a mallet. — Shakespeare
4.
A fanciful, odd, or extravagant notion; a quaint fancy; an unnatural or affected conception; a witty thought or turn of expression; a fanciful device; a whim; a quip.
On his way to the gibbet, a freak took him in the head to go off with a conceit. — L'Estrange
Some to conceit alone their works confine, And glittering thoughts struck out at every line. — Pope
Tasso is full of conceits... which are not only below the dignity of heroic verse but contrary to its nature. — Dryden
5.
An overweening idea of one's self; vanity.
Plumed with conceit he calls aloud. — Cotton
6.
Design; pattern. [Obsolete] — Shakespeare
Collocations (3)
In conceit with , in accord with; agreeing or conforming.
Out of conceit with , not having a favorable opinion of; not pleased with; as, a man is out of conceit with his dress.
To put [one] out of conceit with , to make one indifferent to a thing, or in a degree displeased with it.

Conceit , transitive verb

To conceive; to imagine. [Archaic]
The strong, by conceiting themselves weak, are therebly rendered as inactive... as if they really were so. — South
One of two bad ways you must conceit me, Either a coward or a flatterer. — Shakespeare

Conceit , intransitive verb

To form an idea; to think. [Obsolete]
Those whose... vulgar apprehensions conceit but low of matrimonial purposes. — Milton