portfolio

A portable case for holding material, such as loose papers, photographs, or drawings.

The materials collected in such a case, especially when representative of a person’s work.

The office or post of a cabinet member or minister of state.

A group of investments held by an investor, investment company, or financial institution.

A movable receptacle for detached papers or prints, usually in the form of a complete book-cover with a flexible back, and fastened with strings or clasps.

Figuratively, the office of a minister of state: as, he holds the portfolio of education (that is, he has charge of the documents, etc., connected with that department); he has received the portfolio of the home department.

A portable case for holding loose papers, prints, drawings, etc.

Hence: The office and functions of a minister of state or member of the cabinet

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