to deliver (a package, merchandise etc.) / to hand over, deliver (someone to an enemy, police, etc.) / to betray / to give away (a secret etc.); to confide, reveal, drop (a hint) / abandon oneself, give oneself over [+ à (object) = to]; abandon oneself, give oneself over / to practise (a sport); be engaged in (a job, research); set up (an enquiry) [+ à (object) = to]; to practise (a sport); be engaged in (a job, research); set up (an enquiry)