Is it "all right" or "alright"?
1 Answer
"Alright" is a contraction of "all right" but hasn't been accepted as proper English (yet). So "all right" is always right and "alright" can be right if used informally.
Explanation:
The words "all right" and "alright" are essentially the same thing, with "alright" being a contraction of "all right". This has happened with other words, such as "altogether" and "already", but whereas these words are widely accepted in written English, "alright" hasn't gotten there quite yet.
So - "all right" is "proper English" and so should be used where "proper English" is being called for. "Alright" can be used in a more informal setting - it's acceptability in nice and proper circles hasn't been established (yet) and so should be used as such.
https://en.oxforddictionaries.com/usage/all-right-or-alright