Plain English Meaning
Knowing where you are right now, and knowing how to get from here to where you want to go.
Full Definition
The combined skill of knowing where the airplane currently is in relation to the ground, landmarks, airspace, and intended route (orientation), and the process of planning and following a path from one place to another using visual references, instruments, charts, or electronic systems (navigation).
Context Anchor
Used when learning how to find your position, follow a planned path, use outside references, and avoid becoming unsure of where you are during flight.