Pronunciation: (hī'flī'ing), [key]
1. moving upward to or along at a considerable height: highflying planes.
2. extravagant or extreme in aims, opinions, etc.; unduly lofty: highflying ideas about life.
3. having a high cost or perceived value: the highflying glamour stocks. Also,high'-fly'ing.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.