If you're a first-time homebuyer, many aspects of the purchase process can be confusing and stressful, including financing. While the mechanics of a mortgage are relatively simple, choosing the right mortgage product can be far from it, as many of the choices available to buyers are obscured by complex and unfamiliar terminology.

To help you cut through the jargon, here's an alphabetical list of common mortgage terms and their definitions:

Everyone's heard the term "house poor," referring to anyone who spends a large portion of their income on homeownership, leaving little money left for other expenses or small luxuries. It's a classic case of one's eyes being bigger than their stomach.

That's why getting a mortgage pre-approval can be a double-edged sword – it's nice to know what you can afford, but it's awful tempting to go ahead and spend to the maximum you're approved for. However, this decision can leave buyers vulnerable to fluctuations in the housing market or the overall economy.