What is the meaning of Pty Ltd?

What does “PTY” stand for?
“PTY”, usually used in conjunction with “Ltd”, thus “(Pty) Ltd”, stands for “(Proprietary)”.
“(Pty)” representing “Proprietary” means “private ownership”.
This illustrates one of the main features of Pty Ltd Companies:
that is, their shareholders are not publicly declared, only their directors.
Thus the ownership is private.

What does “Ltd” stand for?
“Ltd” as used in the designation of a private or public company,
for example, either “Bilkovo (Pty) Ltd” or “Bilkovo Ltd”,
stands for “Limited”
and refers to the limitation on the liability of company shareholders and directors.