1. • noun - the outermost region of the sun's atmosphere
   • noun - (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower
   • noun - an electrical discharge accompanied by ionization of surrounding atmosphere
   • noun - one or more circles of light seen around a luminous object
   • noun - (anatomy) any structure that resembles a crown in shape
   • noun - a long cigar with blunt ends
2. • Astronomy.
   • A faintly colored luminous ring appearing to surround a celestial body visible through a haze or thin cloud, especially such a ring around the moon or sun, caused by diffraction of light from suspended matter in the intervening medium.
   • The luminous, irregular envelope of highly ionized gas outside the chromosphere of the sun.
   • The projecting top part of a cornice.
   • A cigar with a long, tapering body and blunt ends.
   • The crownlike upper portion of a bodily part or structure, such as the top of the head.
   • A crown-shaped, funnel-shaped, or trumpet-shaped outgrowth or appendage of the perianth of certain flowers, such as the daffodil or the spider lily.
   • A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.
3. • n - a luminous circle around a celestial body

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