a document issued by a country to a citizen allowing that person to travel abroad and re-enter the home country
"She carefully placed her passport in her carry-on bag before boarding the international flight."
any quality or characteristic that gains a person a favorable reception or acceptance or admission
"her pleasant personality is already a recommendation"
"his wealth was not a passport into the exclusive circles of society"
An official document normally used for international journeys, which proves the identity and nationality of the person for whom it was issued.
"After renewing her passport, she finally felt ready to embark on her long-awaited international journey home."
In plain English: A passport is an official government document that proves who you are and lets you travel to other countries.
"She kept her passport in her wallet for international travel."
Usage: A passport is an essential travel document that verifies your identity and citizenship when crossing international borders. You must carry this specific booklet with you at all times while abroad to prove who you are to authorities.
The word passport comes from the Old French phrase passe-port, which literally means "safe passage at a port." It entered English in the 17th century as an official document granting travelers permission to cross borders or ports without hindrance.