Reject is like when you’re playing with building blocks and a block doesn’t fit where you want it to go. You try to put it on top, but it just keeps falling off because it doesn’t belong there. It’s your way of saying, ‘No, this doesn’t work here.’ Sometimes, when you taste a new food, and it doesn’t taste good to you, you might make a funny face and push it away. That’s your tongue rejecting the taste because it doesn’t like it. It’s like a way of saying ‘No, thank you!’ in a polite way.

Imagine a bouncer at a club. The bouncer’s job is to let in only the people who are on the list. If someone tries to enter who isn’t on the list, the bouncer will stop them and say, ‘Sorry, you can’t come in.’ That’s rejecting someone from entering because they don’t meet the requirements.

Or think about a puzzle piece that doesn’t fit. You try to put it in the wrong spot, and it just won’t stay. That’s the puzzle’s way of saying, ‘I don’t belong here.’ It’s like when your body says no to something, like when you sneeze because of dust. Your body is rejecting the dust because it doesn’t want it inside.