to do something secretly or deceitfully against someone
etwas heimlich oder betrügerisch gegen jemanden tun
"She went behind my back and told the manager everything."
"Sie ging hinter meinem Rücken und erzählte dem Manager alles."
a strong and harmful need to do or use something
to express gratitude or recognition
To challenge someone to fight or compete.
An unclear distinction between two things
To radically change an industry with innovation.
to process and analyze large amounts of data