(+ off) to represent (somebody or something) falsely in order to deceive
to take place and cease, usually in a satisfactory way
His stay in France passed off smoothly
to misrepresent (somebody or something) with the intention of deceiving people
She passed herself off as a millionairess
to disregard (an awkward remark)
to take place and be completed
His stay in France passed off smoothly
to complete its course and cease
His headache had passed off by lunchtime