When you take out a large loan over many years, you don't start paying off the ..... for some time. (*) main (*) chief (*) capital (*) bulk
This is a companion discussion topic for the original entry at https://english.best/questions/3559,when-you-take-out-a-large-loan-over-many-years-you-dont-start-paying-off-the-___-for-some-time/