Editing Tower Defense Simulator Wiki:Manual of Style (section)

===Orthography===
For the most part, American English is the preferred variation in English orthography. This applies to the spelling of words (<span class="yes-text">center</span> not <span class="no-text">centre</span>) and grammar of sentences (<span class="yes-text">burned</span> not <span class="no-text">burnt</span>). Vocabulary differences (such as autumn and fall) can be excused. For more examples, refer to [[wp:American and British English spelling differences|this guide on Wikipedia]].

There are some exceptions to this:
*<span class="yes-text">grey</span> not <span class="no-text">gray</span>.
*<span class="yes-text">pyjamas</span> not <span class="no-text">pajamas</span>.
*Double constants are preferred when used in British, Canadian or Australian English (for example, <span class="yes-text">labelled</span> not <span class="no-text">labeled</span>).
*Formal ''official'' names of objects or standards. These include:
**<span class="yes-text">metre</span> not <span class="no-text">meter</span> (''Le Système international d'unités'').
**<span class="yes-text">aluminium</span> not <span class="no-text">aluminum</span> (''International Union of Pure and Applied Chemistry'').