What does the word pattern mean in design?

A pattern is something that is repeated or used over and over to form or fill a space. Doing this can be called a design
Even something like this is a design:

Answernon-religious themes became more popular, and people also wanted to show off their wealth because painting was a sign of this at the time;

"shake, rattle and roll" is a twelve bar blues-form song, written in 1954 by jesse  stone under  his assumed songwriting name, charles e. calhoun. it was originally recorded by big joe turner and most successfully by bill haley & his comets.