That you are not dating anyone else and you are not married.
It means "available".
available (surcharge)
To be available.
Both are grammatical. They mean slightly different things.
the answer is here
No shizzit
he is single.
If you mean URETHRITIS it is available on GOOGLE.
it means the item is available
It could mean a room that is available (but it's out of context)
state of an atom with for elements available.
they're single or available (: