An aerodrome may be smaller than an airport and not always designed for commercial travel. He took flying lessons at the local aerodrome, which only had one runway.
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Historical Context
'Aerodrome' can sound old-fashioned and is more common in British than American English. The historical society restored the old aerodrome to its former glory.
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Not Just Planes
Some aerodromes are also used for other purposes, like aviation shows or military training. The aerodrome was buzzing with activity during the annual airshow.