What is the meaning of Portfolio?

A case for carrying papers, drawings, photographs, maps and other flat documents.

The collection of such documents, especially the works of an artist or photographer.

The post and the responsibilities of a cabinet minister or other head of a government department.

The group of investments and other assets held by an investor.

A collection of assets; any collection of things considered as investments or assets.

A range of products.

portfolio (representative collection of the works of an artist, designer, or similar, especially as used to present to potential clients)

portfolio

portfolio (case for carrying papers, drawings, photographs, maps and other flat documents)

Source: wiktionary.org