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.
(..) No. He's not quite ready. What do you mean, Marcelle? - What is that? - We'll explain at some point. Marcelle, we have to talk... There's a problem with the training. It's not about being ready. I do not do that. I don't empty a stranger's butt. I don't even empty a friend's butt. (..)2011 The Intouchables
(..) - Wait! Never let him go until he's all strapped. It's one of my sins. She didn't tell me. I'm in training. Do you need gloves or what? Rub harder, for god's sake. It doesn't foam! It's a weird shampoo. - How is it going? (..)2011 The Intouchables