All right or alright?

Is it acceptable to write alright as one word, rather than two separate ones? For example:

She calls them whenever she is traveling to assure them she is alright.
 
Similar ‘merged’ words such as altogether and already have been accepted in standard English for a very long time, so there is no logical reason to object to the one-word form alright. Nevertheless, many people regard it as nonstandard, so it is best to avoid using alright in formal writing. Write it as two words instead:
 
She calls them whenever she is traveling to assure them she is all right.

 

 

See also
Can or may?
'He' or 'she' versus 'they'


Grammar and usage