She's 'in training' to be an astronaut. [=she is being trained to be an astronaut]
a 'training manual' [=a book of instructions for a job or task]
She owes her flexibility to her early 'training' as a dancer.
(..) - Annyong was to teach Buster a lesson. - And where is that little lesson? I sent him to the Milford Academy to teach a lesson. I can't remember about what. And Buster left this morning to finish his army training. - I can't change a hundred. - Oh. Oh, God. Oh. That could be good for army. (..)2004 TvShow: Arrested Development Title: Afternoon Delight Season: 2 Episode 6