What is the difference between the "r" word (recession) and the "d" word; depression?

I mean we all know that historically (since 1929) when we have Republicans in power, we always have a stock market crash and either a recession or depression (economically), and since we have just had eight years of Republican rule in the congress, the Supreme Court, and in the White House it is expected. But at what point will we realize that we are going into a complete economic collapse; an economic depression like in the 1930's like the result of Republican President Herbert Hoover and the parties' philosophy of "borrow and spend, borrow and spend" as it is today?.....ALL economic indiacaters are way down (and falling) as a result of this and all economists are taliking the "R" word. When (at what point) do the American people actually realize we are sliding into an economic DEPRESSION?