It's all about Anglo-French (USA ) versus British English (Canada.. Empire loyalist )
American spellings are not uncommon. Also, while the United States uses the Anglo-French spelling defense (noun), Canada uses the British spelling defence. (Note that defensive is universal.) In other cases, Canadians and Americans differ from British spelling, such as in the case of nouns like tire and curb, which in British English are spelled tyre and kerb. Words such as realize and recognize are usually spelled with -ize rather than -ise, but nouns take the -ice while verbs take the -ise, compare practice and practise. The British ise spelling is not considered incorrect in most incidences. (The etymological convention that verbs derived from Greek roots are spelled with -ize and those from Latin with -ise is preserved in that practice.[10]) Canadian spelling also retains the British practice of usually doubling a final single -l when adding suffixes to words even when the final syllable (before the suffix) is not stressed. Compare Canadian (and British) travelled, counselling, and controllable to American traveled, counseling, and controllable. But both Canadian and British have balloted, profiting, and the irregular woollen (double vowel) whereas American also and usually has
Canadian English is the product of four waves of immigration and settlement over a period of almost two centuries. The first large wave of permanent English-speaking settlement in Canada, and linguistically the most important, was the influx of British Loyalists fleeing the American Revolution, chiefly from the Mid-Atlantic States – as such, Canadian English is believed by some scholars to have derived from northern American English,[6] and
http://en.wikipedia.org/wiki/Canadian_English#Canadian_raising
Look for the meaning of eh...... eh? how about this..
Eh (pronounced /'e?/ or /'?/ in English) is a spoken interjection in Armenian, Japanese, English, Dutch, Italian, Spanish and Portuguese meaning something along the lines of "Repeat that, please". It is also commonly used as a method for inciting an answer, as in "it's nice here, eh?" Lastly, it can also be used to express indifference. In North America, it is most commonly associated with Canada..... EH????
Caliber