IPA: //ˈpoʊstˈpraɪˌmɛri//
KK: /ˈpoʊstˈpraɪˌmɛri/
Relating to the period or education that comes after primary school or primary elections.
Many students choose to pursue vocational training in postprimary education.
Postprimary → It is formed from "post-" (meaning after) and "primary" (from Latin "primarius", meaning first or primary). The word "postprimary" refers to education or events that occur after the primary level.
Think of 'post-' meaning 'after' and 'primary' meaning 'first' — so 'postprimary' refers to what comes after the first level.
No commonly confused words.