[syn: air travel, aviation, air]
The Collaborative International Dictionary of English v.0.48:
Aviation \A`vi*a"tion\, n.
The art or science of flying.
WordNet (r) 3.0 (2006):
n 1: the aggregation of a country's military aircraft [syn:
aviation, air power]
2: the operation of aircraft to provide transportation
3: the art of operating aircraft [syn: aviation, airmanship]
4: travel via aircraft; "air travel involves too much waiting in
airports"; "if you've time to spare go by air" [syn: air
travel, aviation, air]