P.G.

1. Past Grand.

2. paying guest.

3. Postgraduate.

4. Also, p.g. Informal. pregnant.

* * *

Pg.,

1. Portugal.

2. Portuguese.

p.g.,

paying guest.

PG (no periods),

1. Parental Guidance (a symbol used in the United States for motion pictures recommended to the general audiences, with parental guidance advised).

2. prostaglandin.

P.G.,

1. Past Grand (Master).

2. paying guest.

3. postgraduate.