invigilate

v [I, Ipr, Tn] ~ (at sth) (Brit) be present during (an examination) to make sure that it is properly conducted, that no cheating occurs, etc （在考场上）监考: invigilate (at) a history exam 监考历史.

inversely, inversion, invert, invertebrate, inverted, inverted commas, inverted snob, invest, investigate, investigation, investigative, investigator, investiture, investment, investor, inveterate, inveterately, invidious, invidiously, invidiousness, invigilation, invigilator, invigorate, invigorating, invigoratingly, invigoration, invincibility, invincible, invincibly, inviolability, inviolable, inviolably, inviolate, invisibility, invisible, invisible ink, invisible mending, invisibly, invitation, invite,