IPA: //ˌpoʊst.kəˈliː.dʒɪt//
KK: /ˈpoʊstˌkɒlɪdʒɪt/
Relating to the time or activities that happen after someone has graduated from college.
Many postcollegiate students pursue further education or start their careers.
Postcollegiate → It is formed from "post-" (meaning after) and "collegiate" (from Latin "collegium", meaning a society or group of colleagues). The word "postcollegiate" refers to the period or status after attending college or university.
Think of 'post-' meaning 'after' and 'collegiate' relating to 'college' — so postcollegiate refers to the time after college.