passport

passport
noun
  1. an official document issued by a government, certifying the holder's identity and citizenship and entitling them to travel under its protection to and from foreign countries
    护照
    ■[in sing.]a thing that ensures admission to or the achievement of something
    保障,手段
    good qualifications are a passport to success.
    良好的资质是成功的保障。
语源
  1. late 15th cent. (denoting authorization to depart from a port): from French passeport, from passer 'to pass' + port 'seaport'
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