equator
The equator
Latitude is distance from the Equator.
No, latitude is not another name for the equator. The equator is a specific line of latitude at 0 degrees, and latitude refers to the angular distance north or south of the equator measured in degrees.
No line of latitude is a north/south line. A move to the north or south is a change of latitude.
The equator.
The definition of zero latitude, from which all others are measured, is the equator.
the equator
The equator is another name for the 0 line of latitude.
That's the equator . . . the line comprised of all points with zero latitude.
A latitude is measured in degrees from the equator to the north (or south) pole. I assume that you mean, "What is the line that forms the zero degrees latitude?" The answer is the Equator.
'Lines' of latitude are often called 'parallels' of latitude.
This is the Tropic of Capricorn.