суть
жен. essence, core, main point, gist суть вопроса/проблемы ≈ the crux/kernel/heart of the problem по сути дела ≈ at bottom of fact, as a matter of fact, in point of fact дойти до сути ≈ to come to the point, to touch the ground
Большой англо-русский и русско-английский словарь.
2001.