Yep. It's an adverb or, rarely, a pronoun. Here's the wonderful wiktionary: http://en.wiktionary.org/wiki/anywhere
It's never one word.
This is not a slang word anywhere that I can find. The definition in the dictionary is the only one I have ever seen used for the word "idle."
Joyous
anyway
The adjective would be invincible. (unbeatable)
It is one word
It is one word "anywhere" meaning "in any location."
Anywhere In footnotes, "here and there" is passim.
It's never one word.
Yes, the word earmuffs is one word, virtually always used in the plural.
If you mean "always", it is definitely one word.
Omnipresent
"Will not" is always two words, but its contraction, "won't", is one word. You might be thinking of "cannot", which isone word.
One word
One could use the word always.
there is not one you can always just unlock it when you go there?!
This is not a slang word anywhere that I can find. The definition in the dictionary is the only one I have ever seen used for the word "idle."