Think of it like a buffet table overflowing with food – that's a plethora!
Here are some examples:
* "There was a plethora of choices on the menu."
* "The internet provides a plethora of information."
* "The garden was full of a plethora of flowers."
It's often used in a more positive sense, highlighting the abundance and richness of something. However, it can also be used to suggest a situation where there is too much of something, leading to confusion or difficulty.