Online slots use everyday words like wild, scatter, and payline in special ways...

https://felixscoolop-eds.lumenforgex.com/posts/save-icon-floppy-disk-an-example-of-tech-words-that-stuck

Online slots use everyday words like wild, scatter, and payline in special ways that affect your gameplay. For example, a wild can substitute for other symbols, while a scatter might trigger bonus rounds