noun
Act of remaining aloft
flying, soaring, winging, gliding, volitation, hovering, cruising.
Travel by air
aviation, aerial navigation, aeronautics, flying, space flight, air transport, stratospheric travel, space probe, ballooning, hang gliding, sailplaning, trip by air, hop*, hedgehopping*.
Flight conceived figuratively
effort, inspiration, sublime conception; see fancy 2, imagination 1.
Act of fleeing
fleeing, running away, retreating; see escape 1, retreat 1.
Stairs
steps, staircase, ascent; see stairs.
put to flight
take (to) flight