to do something secretly without their knowledge
etwas heimlich tun, ohne dass die Person es weiß (etwas heimlich tun, ohne dass die Person es weiß)
"She was talking about me behind my back."
"Sie sprach hinter meinem Rücken über mich." (Sie sprach hinter meinem Rücken über mich.)
to stop fighting and become friends again
to discuss and think creatively to generate new ideas
to take on a difficult task without preparation
a positive aspect in a bad situation
to delay or reduce doing something
being tested or judged