Okay kiddo, have you ever hugged your mom or dad when you felt happy or sad? That's called giving affection! It's a way to show someone that you care about them.
In linguistics, affection means adding little words or sounds to a word to show how you feel about it. For example, saying "I love you sooo much!" is using affection because you're making the word "love" sound bigger and more intense.
People use affection in their language all the time! They might add extra words to show excitement or happiness, or they might make their voice sound more gentle to show they care. It's a way to make the words you say sound more emotional and meaningful.