There is a micro-phenomenon of new wave, special snowflake directors that try to revolution the canons of classical opera. I saw Carmen being banged behind a burning car next to what looked like a flamenco-infused Thunderdome. That was in Paris opera, stronghold of modernist SJW nonsense.
Here, the expression is a shorter version of matriculation college. In a number of Canadian cities, many government-run secondary schools are called collegiates or collegiate institutes (C.I.), a complicated form of the word college which avoids the usual post-secondary connotation.
[The Saratogian]. Alumni is a plural noun referring either to a group male graduates or to a group of both male and female graduates.The singular alumnus refers to one male graduate, alumna refers to one female graduate, and the plural alumnae refers to a group of female graduates.The Saratogian]. Alumni is a plural noun referring either to a group male graduates or to a group of both male and female graduates.