After the speech there will be a 'question and answer session'. [=a period of time when people can have their questions answered]
School will be back 'in session' at the beginning of September. [=school will start again at the beginning of September]
The board met in 'closed session' [=with no one else present] for four hours to discuss the issue.
(..) You don't need me any more, Moss. What? Well, there's obviously nothing wrong with you. And I think you're ready now to do without our sessions. But I've been feeling depressed! Oh really? Why? Because I'm pregnant. What? I mean... (..)2006 TvShow: The IT Crowd Title: Aunt Irma Visits Season: 1 Episode 6