Belia, who has a post-graduate degree, makes a little less than that as a head mistress at a private school.
For all its problems, the U.S. higher education system—especially the post-graduate education system—is the best in the world.
also postgraduate, 1858, originally American English, from post- + graduate (adj.). As a noun, attested from 1890. Abbreviation post-grad is recorded from 1950.