to think very hard about something
penser très fort à quelque chose (penser très fort à quelque chose)
"I had to rack my brains to remember her name."
"J'ai dû rack my brains pour me souvenir de son nom." (J'ai dû **rack my brains** pour me souvenir de son nom.)
to forget past mistakes and start fresh
to reduce the amount or pressure of something
relief after dealing with a stressful situation
to speak frankly or sincerely
to be patient with someone or something
to organize by separating what is needed from what is not