Our emergency account is anytime we're faced with a large expense and we have no means to pay for it.
And by means I mean cash. I avoid interest as much as possible.
We have three savings accounts, though. One has $1500 in it and would be the first place we turned if something happened and we needed cash quick since it's with our local bank. Things like.. a new oven, tires, car repairs, medical expenses, etc.
The others are ING accounts, so the money is not as accessible quickly-- one is our emergency emergency account. It would pay for a years worth of utilities, mortgage, car payment, etc.. if we ever needed it. So if something happened to DH or he were to lose his job, we would pull this money.
The other is a vacation account. It's kinda weird though... our upcoming Disney Vacation won't be paid for out of that vacaion account. It'll be paid for our of monthly income once the promo financing on the Disney Visa is up.
Our Vacation account is more of a secondary emergency account, I guess. And maybe eventually a really great vacation!!
We would touch it before the major emergency account, though.