to get rid of something unpleasant
se débarrasser de quelque chose d'inagréable (se débarrasser de quelque chose d'inagréable)
"She took a walk to shake off the stress."
"Elle a fait une promenade pour se débarrasser de le stress." (elle a fait une promenade pour se débarrasser de le stress)
to reveal someone's secret identity or hidden purpose
to learn by making mistakes or through difficult experiences
to act in a way that helps other people
a funny moment in a serious situation
to relax your vigilance or become less careful
to have more power or advantage over others