What does ca. stand for?

ca. stands for "about (circa [Lat.])"

How to abbreviate "about (circa [Lat.])"?

"about (circa [Lat.])" can be abbreviated as ca.

What is the meaning of ca. abbreviation?

The meaning of ca. abbreviation is "about (circa [Lat.])"

What does ca. mean?

ca. as abbreviation means "about (circa [Lat.])"