What Is a "Satoshi" + What is a "Lightning"

full image - Repost: What Is a "Satoshi" + What is a "Lightning" (from Reddit.com, What Is a "Satoshi" + What is a "Lightning")

I'm new In bitcoin and I am trying to pick up on some of the wording you guys use. I don't fully under stand what someone means when they refer to using satoshis and lightning cards or what not . Please explain if it's not to stupid of a question.

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