Here are some words that I find interesting. Often they refer to things or phenomena you might find elsewhere but have a special meaning in Canada. To understand the meaning of the word "collector" ("Sammelspur") in Toronto you have to use one of the huge highways with their subdivisions. 

Animals are always special in a country like Canada. One evening the children saw a "woodchuck" (Waldmurmeltier). I'm quite sure we don't have those in Germany. And of course there were lots of "chipmunks" (Backenhörnchen) and "squirrels" (Eichhörnchen).  

In Algonquin we learnt what a "snapping turtle" (Schnappschildkröte) looks like and that it can bite off your finger, if you aren't careful. And I met a "black bear" (Schwarzbär).

There's "portage" (Kanutransport über Land), a very common word in Canada, where everybody seems to own a canoe. The Canadian English pronunciation is (surprise) like the French one.

Campgrounds seem to breed a special vocabulary: You need "hook-ups" (Strom-, Wasser-, Abwasseranschlüsse), "gazebo tents" (Pavillonzelte) with mosquito nets ans sometimes even a "portapottie" (mobile Toilette). I already knew "nickel" (5-Cent-Münze) and "dime" (10-Cent-Münze), "loony" (1-Dollar-Münze) and "toony" (2-Dollar-Münze" I learnt in the laundry room.

It's always important to understand what you are going to eat. Sometimes you are in for surprise. "Beavertail" sounds like meat, but it's (very) sweet and definitely not low fat. In a supermarket we discovered that "Pogo" is the Canadian equivalent to the American "corndog".

Otherwise Canadian English is an unpredictable mix of British and American English. It's "fries" (Pommes frites) everywhere, but when you add fish it's "fish & chips". I often heard and read "tap" and not "faucet", but also "elevator" and not "lift". The pronunciation is clearly American, the spelling often British as in "centre".