Ключевые слова: accident, aerial, aeroplane, air, aircraft, airline, airplane, assistance, assurance, background, business, care, concept, contract, control, craft, danger, education, finance, flight, fly, flying, guard, hand, health, help, hold, insurance, lifebuoy, passenger, plane, protect, protection, protective, rescue, risk, safe, safety, secure, security, service, sign, symbol, technology, terrorism, tourism, transport, transportation, travel, trip,