Plain English Meaning
A two-number address for any spot on Earth. The first number tells you how far north or south of the equator you are, and the second tells you how far east or west of a line that runs through Greenwich, England. Put the two together and you have an exact location.
Full Definition
A pair of angular measurements used to specify any point on the Earth's surface. Latitude measures the angle north or south of the equator (0° to 90°), and longitude measures the angle east or west of the Prime Meridian, which runs through Greenwich, England (0° to 180°). Together, they form a global grid that defines a unique position, typically expressed in degrees, minutes, and seconds (e.g., 34°03'08"N, 118°14'37"W).
Context Anchor
Seen on aeronautical charts, in route descriptions, and in published locations for airports, navigation points, and federal airways.