What are letters and words?

Letters are the tiny building blocks of writing, just like bricks are to a house. You have seen them every day on cereal boxes, street signs, and toys. Each letter is a single symbol that represents a sound. For example, when you hear B, you think of a bouncy ball bouncing. When you see A, it looks like a little ladder climbing up.

Words are made by grouping letters together to share a meaning. If a letter is one brick, a word is a whole wall section with a specific purpose. Take the word cat. It uses three letters: c, a, and t. Put them in order, and you have something furry that says "meow." Change just one letter, and you get a new thing entirely. Swap the c for an h, and it becomes hat, which sits on your head.

Think of letters like colored Lego bricks. You can build different shapes with them. The shape itself doesn't change what it is made of, but how you snap them together matters. Words are those snapped-together groups that tell a story or name an object. When you read a sentence, you are just looking at many word-bricks lined up in a row to tell a bigger tale.

The best part about letters is their secret job: they match sounds we make with our mouths. We call these phonics. When you sound out b-a-g, your mouth makes the "ba" noise, then adds "g." It feels like unlocking a code to speak and read at the same time. So, letters are the symbols, and words are the meaningful packages built from those symbols.