All right, it’s time to know — despite Black Sabbath’s claim — “alright” is NOT all right in edited text or publications.
Alright [THINK: just as accepted as a’ight]
All right [THINK: right; all right]
“The form alright is a one-word spelling of the phrase all right. Alright is commonly used in written dialogue and informal writing, but all right is the only acceptable form in edited writing. Basically, it is not all right to use alright in place of all right in standard English.“
[read more about it on blog.dictionary.com]