Cap Height

The distance from the baseline to the top of a capital letter, number, or other upper-case glyphs.

More terms you might want to know

Onboarding Flow

The process of a new user being brought in to a new product. The design for this process aims to have an effective, efficient, and engaging user experience.

Thumbnail

A small, non-preview image that accompanies a larger image. It provides an immediate sense of the content while not necessarily revealing it in its entire scope.

Design Debt

A concept used in systems design to describe the negative consequences of making seemingly innocuous design changes. Shorthand for a product's delayed but inevitable need to be reworked due to earlier, seemingly trivial decisions not having been fully thought through in the original release.

Designers incur this "debt" by making quick and easy choices that save time in the present but cause more complex problems later on down the road when it becomes necessary to change or add something.

KPI

A key performance indicator is a variable that measures how well an entity is performing. It's a figure that designates an individual or item's performance level. A particular company may use metrics such as sales, revenue, production, and market share to gauge the success of their firm.

Stem

The part of a letter, usually a vertical line, that rise above the x-height.

Greyscale / Grayscale

Black, white, and all the values of shades in between.

Font Case

The way characters are capitalised within a word or phrase. Common font cases are uppercase, lowercase, capitalised (or title case) and sentence case.

HTML

A language used to create web pages, and it stands for Hypertext Markup Language.

User Scenario

An example of a typical user and the actions they take. Typically these are written in the form of a story.

Shade

The relative lightness or darkness of a hue.

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