I call it the latitude of any point on the equator.
Zero latitude is the Equator.
0 degree latitude is called equator
The equator is zero latitude.
Zero degrees of latitude is the Equator.
Zero degrees latitude is the Equator.
The line of zero latitude does that. Folks often call that one the 'Equator'.
The equator is the definition of zero latitude.
This latitude is zero.
No point on Earth can have both a north and a south coordinate. (Except points on the equator, where latitude is zero so it doesn't matter whether you call it zero north or zero south.)
The equator is the definition of "Zero latitude".
Zero latitude is the definition of the earth's equator.
The equator is the line of zero degrees latitude.