noun
airport station
Refers to a railway station serving an airport, typically with direct terminal access.
成田空港駅はターミナルの地下にある。
Narita Airport Station is located underground at the terminal.
空港 means 'airport' in general, while 空港駅 specifically refers to the railway station at an airport.
Compound of 空港 (airport) + 駅 (station).