passport vs transport in Korean
여권vs교통

여권passport
A passport (여권) is an official book or card you use to travel to other countries. It shows who you are and what country you are from. People usually carry it at the airport or when crossing a border.
When to use passport
교통transport
Transport means the system or way people move from one place to another, like buses, trains, cars, and subways. In Korean, 교통 is often used when talking about how easy, busy, or inconvenient transportation is in an area. You can use it for public transportation, traffic, and getting around a city.
When to use transportHow they differ
This means buses, trains, cars, and the system of moving people. It is about travel methods, not a personal travel document.