Sunburn (noun)

1. A burn of the skin caused by exposure to the ultraviolet (UV) rays of the sun.
2. A condition of the skin marked by redness, itching and pain caused by too much exposure to the sun.

Origin:

From the combination of the words "sun" and "burn" which means burning caused by the sun.

Examples:

1. I got a sunburn on my face after spending too much time at the beach.
2. He got a sunburn from not wearing sunscreen while playing golf.
3. She always gets sunburned if she doesn't put on enough sunscreen.
4. The sunburn made her skin red and swollen.
5. I have to stay indoors for a few days to avoid sunburn.