the flight of Muhammad from Mecca to Medina in 622 which marked the beginning of the Muslim era; the Muslim calendar begins in that year | an instance of traveling by air |
| the act of escaping physically |
| a scheduled trip by plane between designated airports |
| a stairway (set of steps) between one floor or landing and the next |
| passing above and beyond ordinary bounds |
| an air force unit smaller than a squadron |
| a formation of aircraft in flight |
| a flock of flying birds |
| the path followed by an object moving through space |