Lesson 22, Exercise 6: The Customer Service Rep
('Rep' is very common in the US. It is short for 'Representative'.)

Watch the video. Answer the question.
Luggage as it is presented to airport personnel at the ticketing counter.
1 - Luggage (uncountable noun): Baggage, suitcases.
2 - Check in (phrasal verb): Sign in, register at a hotel or airport.
Tap on any word once (mobile), or double-click on any word (computer), to read an English definition. If you need an approximate translation to your own language, the Google Translate button is available at the top of the screen.