Glamour.
"She spent her entire summer internship at a local glam cataloging rare manuscripts for the university library."
Galleries, libraries, archives and museums.
In plain English: GLAM refers to cultural institutions like museums, libraries, and galleries that preserve and share information and art.
"The new museum wing promised a glim of ancient artifacts rarely seen by the public."
To make glamorous or more glamorous.
"She decided to glam her old jeans by adding some glittery patches and sequins."
In plain English: To glam something up means to decorate or style it to look fancy and attractive.
"She tried to glam up her old dress with a sparkly belt."
Glamorous.
"She felt completely glamorous standing on the red carpet under the flashing cameras."
In plain English: It means fancy and impressive.
"The actress looked absolutely glam in her sequined gown."
University of Glamorgan, used especially following post-nominal letters indicating status as a graduate.
"After graduating from the university in Wales, she proudly added Glam to her name on all professional documents."