Webster's Revised Unabridged Dictionary · 1913

Vanity

Vanity , noun

[Old English vanite, French vanité, Latin vanitas, from vanus empty, vain. See Vain.]

1.
The quality or state of being vain; want of substance to satisfy desire; emptiness; unsubstantialness; unrealness; falsity.
Vanity of vanities, saith the Preacher, vanity of vanities; all is vanity. — Eccl. i. 2
Here I may well show the vanity of that which is reported in the story of Walsingham. — Sir J. Davies
2.
An inflation of mind upon slight grounds; empty pride inspired by an overweening conceit of one's personal attainments or decorations; an excessive desire for notice or approval; pride; ostentation; conceit.
The exquisitely sensitive vanity of Garrick was galled. — Macaulay
3.
That which is vain; anything empty, visionary, unreal, or unsubstantial; fruitless desire or effort; trifling labor productive of no good; empty pleasure; vain pursuit; idle show; unsubstantial enjoyment.
Vanity of vanities, saith the Preacher. — Eccl. i. 2
Vanity possesseth many who are desirous to know the certainty of things to come. — Sir P. Sidney
[Sin] with vanity had filled the works of men. — Milton
Think not, when woman's transient breath is fled, That all her vanities at once are dead; Succeeding vanities she still regards. — Pope
4.
One of the established characters in the old moralities and puppet shows. See Morality, n., 5.
You... take vanity the puppet's part. — Shakespeare
5.
same as dressing table.
6.
A cabinet built around a bathroom sink, usually with a countertop and sometimes drawers.