Is treehouse [tree house] one word or two?
"She saw a red fox's tail hanging form the opening of a bird's treehouse."
I didn't want to use the word house, or home, but I couldn't think of any other word to use there. If you could help me with this word, or even give a better word to use there it would be great.
*Also if anyone knows any good sites [other than Thesaurus.com] to get synonyms, its source would be greatly appreciated*