Yes, as it consists of "sun" and "bathers", it is a compound word.
Yes, it is one word, sunbathers, and is not properly used as two words.
sunglasses, suntan, sunbathe, sunbeam, sunbed, sunburn, sunstruck, sunshine, sunset, sunlight, ...
Govt has to spend money to clean litter on beaches by sunbathers. which means that sunbathers are ruining the enviroment
No, building is not a compound word.
The contraction (not a compound word) is doesn't.
Upwards is a compound word.
There is no compound word.A compound word is a word like bus-stop.Husban is spelt like this husband
Upstairs is a compound word, so it is one word.
Cleveland Browns
Mango is not a compound word.
It cannot be a compound word.
No, "prevent" is not a compound word. It is a single, standalone word.