They are Isotypes, a form of pictoral (picture) language
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The word is SPEAKEASY. A speakeasy was a secret bar where alcohol was illegally sold during Prohibition, when this was illegal. Jazz was the genre of music most popular in speakeasies.
I believe the answer you’re looking for is existentialism :)
Answer: Lines are the most basicand most important elements of design. They come in all shapes, sizes, and colors. Once you start noticing them, you'll see grids all around you. Lines have direction; they can be visible or invisible and can help direct the eye to a specific spot. Hierarchy is an important principle of design that directly relates to how well content can be processed by people using a website. It refers to the importance of elements within a design. The most important elements (or content) should appear to be the most important.
Explanation: