Dictionary.com Word FAQs
Which is correct - alright or all right?
It is not all right to use alright in place of all right in standard American English, even though there are similar contractions like "already," "almost," and "altogether." However, alright is coming into acceptance in British English. Alright as an adverb meaning 'just, exactly' is considered obsolete. The one-word spelling alright appeared about 75 years after all right itself had reappeared after disappearing for 400 years. Alright is less frequently used than all right but is found in journalistic and business writing. All right is used to express acquiescence or assent and also in predicative use as 'satisfactory, acceptable', and as an adjective phrase (often hyphenated) to indicate approval.