Procedure is correct.
Neither of those spellings is correct; the correct spelling is "extravagant."
There are two accepted spellings, with or without the "O" : mustache/moustache. (The growth of hair between the nose and mouth.)
The correct spellings are 'happens' and 'occurs'.
The correct spelling is alliteration (using words with similar sounds or spellings).
The correct spellings are 'esophagus' or 'oesophagus' depending upon if you are in the US or UK respectively.
The Correct Spellings are "Acquire"
Those are the correct spellings of "museum" and "grandma" (short for grandmother).
Neither of those spellings is correct; the correct spelling is "extravagant."
In British English, the correct spellings are colour and favourite."Green is my favourite colour".In American English, the correct spellings are color and favorite."That color is not my favorite".
tareq
You learn to spell and write.
They don't really have spellings. People tend to spell them out phonetically it at all.
Yes, those are correct spellings of advice and opinion.
It means it must be grammatically correct. The word spellings and the structure should be correct too.
The correct spellings are "mucus" (noun) and "mucous" (adjective).
Whacko and wacko are both spellings that are correct that can be interchangeable.
Nothing. Both spellings are correct.