<p>i checked out princeton's website and found that instead of ED, they'll have some weird application system.
wut is a priority application?
how is it different from ED or RD??</p>
<p>Princeton has only one application plan with a deadline of Jan 1.
I don't know what you mean by "priority application" and I could not find the term on their website either, but they encourage you to submit your application by Dec 15 (priority date). That way, there is more time to get missing stuff in (you may think that's not an issue, but big admission offices tend to misplace some stuff every now and then) and your application may be processed earlier, as soon as your file is complete.</p>