a. Excessive pride in one's appearance or accomplishments; conceit. See Synonyms at conceit.

b. Something about which one is vain or conceited: "One thing ... rather quenched her vanities: she had to wear her cousin's clothes" (Louisa May Alcott).

a. Worthlessness, pointlessness, or futility: the vanity of regretting missed opportunities.

b. Something that is vain, futile, or worthless.

a. See vanity case.

b. See dressing table.

c. A bathroom cabinet that encloses a basin and its water lines and drain, usually furnished with shelves and drawers underneath for storage of toiletries.