An aerodrome (Commonwealth English) or airdrome (American English) is a location from which aircraft flight operations take place, regardless of whether they involve air cargo, passengers, or neither. Aerodromes include small general aviation airfields, large commercial airports, and military airbases.
The term airport may imply a certain stature (having satisfied certain certification criteria or regulatory requirements) that not all aerodromes may have achieved. This means that all airports are aerodromes, but not all aerodromes are airports. Usage of the term "aerodrome" remains more common in the UK, Ireland and Commonwealth nations; in American English, it is only used for a facility specialized in antique or ultralight aircraft.A water aerodrome is an area of open water used regularly by seaplanes or amphibious aircraft for landing and taking off.
According to the International Civil Aviation Organization (ICAO) an aerodrome is "A defined area on land or water (including any buildings, installations, and equipment) intended to be used either
wholly or in part for the arrival, departure, and surface movement of aircraft."