DCHP-1 Online
air harbo(u)r 
1 Obs. an airport.
- 1936 The first civil air harbour in Canada was then established, and the first practical use of aircraft for civil purposes was then got under way.
- 1956 Bell likes to use the term "air harbor." The phrase was on his tongue back in 1919 before the word "airport" had been invented
2 a harbor for aircraft equipped to land on and take off from water.
- 1954 For those who enter Ontario by air, whether as private pilots or in chartered aircraft, there are about 175 air fields and air harbours in the province.
- 1936 The first civil air harbour in Canada was then established, and the first practical use of aircraft for civil purposes was then got under way.