A flong (also mat or stereo mould) is a relief impression (in materials such as papier-mâché or plaster mould) of a forme created from handset metal type and/or printing blocks. It is used to cast a so-called stereotype, which is then used for printing.

Plakadur was a brand name for a resin-based material used for display letters of the Berthold AG in the 20th century as an alternative to wood type.

A thread counter or linen tester is a magnifying tool, where the lens is mounted at a fixed distance above the object being put under the tool. It was originally invented to check the quality of woven fabrics. But it also became a common tool in the printing industry.

A glyph to represent glottal stop or glottal plosive.

Smaller (leads) or thicker (slugs) strips used as spacing material in letterpress printing, especially to to increase the line height.

Line spacing, interline spacing, line height or leading is the distance between the baselines of successive lines of type. The term leading has its roots in letterpress printing where it referred to the lead strips added between the lines.

In the context of letterforms, hairlines are the thinnest strokes within a letter.

Serif is a font classification category, which includes fonts having serifs (i.e. small strokes regularly attached to the end of a larger strokes).

One part of a bicameral script with less ascenders and descenders. 

One part of a bicameral script with usually more ascenders and descenders.

A typeface is a set of of glyph designs that share common design features.

The endband at the bottom of a book.

The endband at the top of the book.

An endband is a part of a (hardcover) book that consists of a small cord or strip of material affixed near the spine to provide structural reinforcement and decorative effect.

String used for tying up a columns or pages of letterpress type after making up. This is done to to secure the columns or pages temporarily until they are imposed or to store them (see standing matter).

The Spine of a book refers to the outside edge of the book where the pages are gathered and bound.

The fore edge is the edge of a book’s text block opposite the spine.

A colophon is a brief statement in a publication containing information like the place of publication, the publisher, and the date of publication. The colophon was formerly printed at the ends of books, but in modern works they are usually located at the verso of the title-leaf.

A printer's mark (or device, emblem, insignia) was a symbol used as a trademark by printers starting in the 15th century.