Webster's Revised Unabridged Dictionary · 1913

Flare

Flare (flâr) , intransitive verb

[Compare Norw. flara to blaze, flame, adorn with tinsel, dial. Swedish flasa upp, and English flash, or flacker.]

1.
To burn with an unsteady or waving flame; as, the candle flares.
2.
To shine out with a sudden and unsteady light; to emit a dazzling or painfully bright light.
3.
To shine out with gaudy colors; to flaunt; to be offensively bright or showy.
With ribbons pendant, flaring about her head. — Shakespeare
4.
To be exposed to too much light. [Obsolete]
Flaring in sunshine all the day. — Prior
5.
To open or spread outwards; to project beyond the perpendicular; as, the sides of a bowl flare; the bows of a ship flare.
Collocations (1)
To flare up , to become suddenly heated or excited; to burst into a passion. [Colloquial] — Thackeray

Flare , noun

1.
An unsteady, broad, offensive light.
2.
A spreading outward; as, the flare of a fireplace.
3.
(Photography) A defect in a photographic objective such that an image of the stop, or diaphragm, appears as a fogged spot in the center of the developed negative.

Flare , noun

Leaf of lard.
Pig's flare. — Dunglison