corona

ot noun

1. A coronavirus, especially SARS-CoV-2. The recent surge of deaths due to corona reveals the shortcomings of our current healthcare system.
2. A coronavirus disease, especially COVID-19. She caught corona last week.
3. The luminous plasma atmosphere of the Sun or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse.
4. A circle or set of circles visible around a bright celestial object, especially the Sun or the Moon, attributable to an optical phenomenon produced by the diffraction of its light by small water droplets or tiny ice crystals.

fe’l verb

1. To surround with a luminous or crownlike ring as if by the solar corona.