A) THE FOLLOWING WORDS ARE COMPOUND NOUNS
6. a) The following words are compound nouns: seatbelt (seat + belt), airline (air + line), airport (air + port), passport
(pass + port), runway (run + way), upgrade (up + grade). b) The following words and phrases contain suffixes:
boarding pass, landing, priority boarding; duty-free, security guard; excess baggage, luggage; destination,
reservation; budget airline, ticket; arrivals, terminal; visa; holiday; departure lounge; economy class; passenger;
customs; turbulence; transfer; business class; pilot; flight attendant; tourist.