In real estate, amortization is the payment amount and frequency in order to pay off a property loan by a pre-defined due date. Amortization refers to the payments you need to make in order to pay off your property loan so it reaches zero by the due date (typically 25 years).
Amortization schedule adjusts payments and includes your monthly payments plus interest which will be changed each time your fixed rate ends or the variable rate increases/decreases until your loan principal reaches a value of zero.
For example: You will have a $300,000 mortgage over 25 years at 3% interest. You manage to fix in your loan for 3% for the entire 25 years (lucky you!) - This would mean your monthly payments would be around $1,420 each month for 25 years.