The standards for the site call for the use of American spelling. In profiles no one is likely to care, and no one is going to get blocked or warned for use of British spelling.
The American spelling is apologize. The British sometimes use apologise.
Both are correct within its own country. WikiAnswers uses American spelling as their standard. +++ That may be so for the primary texts but a British contributor like me is likely to use British spellings (except of course for American proper nouns, e.g. "harbour" in general but "Pearl Harbor" for the name of the place).
You can use a program like myWriterTools to automatically change British spelling and word usage to American spelling and usage, or vice-versa.
In "American English", which we prefer to use on WikiAnswers, the proper spelling is "Fertilize". However, in the UK and other places where "British English" is spoken, then the spelling is "Fertilise". So, in effect, both are correct depending on which form of the English language is the local standard.
amongst is the british standard spelling. if you are an american and live in american stay away from amongst and just say among
American English doesn't typically use dipthongs like 'ae', and would spell it 'cecum'.
Plough is the British spelling of the American variation Plow. "The farmer needs to plough the field."
British people use 'u' in words, like in the word colours. The same American English words do not have the 'u', e.g. colors.
The American spelling is favorite. In places that use British English, such as the UK, New Zealand and Australia, it is spelt favourite.
"Parlour" is the British spelling; "parlor" is the American spelling. The sentences below provide examples of both spellings:I was escorted to the parlour, where I was greeted by my host.We then played parlor games until it was time for dinner.Joe's girlfriend works in a massage parlor.
Some of the differences in British and American use of the English language include the different dialects and pronunciations of words. There are differences in some spelling as well for example: our ending, like colour to color.
In American English, "acknowledgment" is the preferred spelling. In British English, "acknowledgement" is more commonly used. Just be consistent with the spelling throughout your thesis.