passport

US /ˈpæs.pɔːrt/
UK /ˈpæs.pɔːrt/
"passport" picture
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.

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Don't forget your passport when you travel internationally.
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She showed her passport at the immigration counter.
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travel documentidentification
2.

a thing that enables or assures passage, admission, or access

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Good communication skills are a passport to success in any career.
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Education is often seen as a passport to a better life.
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keymeansaccessticket