What country are you from and do you call it 1) elementary, junior high, high school 2) elementary, middle school, high school, 3) primary, ???, secondary?
Fyi: it's called post secondary because, I think, UK calls it primary, secondary, and after that is post secondary.
Kindergarten, Elementary/Primary 1-6 grade, Junior High 7-9, Senior high school 10-12, though most say year 1 junior(7th grade), year 1 senior(10th grade), then College/University/Tech University.
Some choose vocational high school after junior high, and most people from vocational high choose Tech University.
I attended a complete high school, means the whole secondary education combined, so we call junior high section 1-3rd grades and senior high section 4-6th grades🤣