As we continue our literacy series, let’s pause and ask a simple question:

What’s the point of reading if you don’t understand what the words mean?

We’ve already talked about phonological awareness (hearing and playing with sounds), phonics (connecting letters to sounds), and fluency (reading smoothly and accurately). Those skills matter. They are foundational. They are non-negotiable.

But vocabulary is where reading starts to make sense.

I’m an avid reader. I write professionally. As far as general literacy goes, I’m pretty well set up for life. But suppose I go to the library and check out a book on the technical side of phlebotomy. While I may be able to read the words, my ability to understand them is severely compromised. While I may be able to read “Hemoconcentration,” I wouldn’t be able to explain its meaning or the concept it conveys in the sentence. 

Vocabulary offers us context when we read. 

A child can decode every word on the page. She can read at a good pace. She can even sound impressive. But if she doesn’t know what the words mean, comprehension falls apart.

Reading isn’t about pronouncing words correctly. It’s about constructing meaning. Reading is impossible without vocabulary.

The more words a child knows, the more easily she understands what she reads. It really is that straightforward.

So, Where Does Vocabulary Come From?

Vocabulary doesn’t grow by accident. It grows from exposure, instruction, and repetition over time. Let’s break it down in a way that’s practical and doable:

Oral Language: Everyday Conversation Matters More Than You Think

Vocabulary begins long before a child ever opens a book.

It begins at the dinner table. In the car. During bedtime chats. While folding laundry. During family devotions. In ordinary, everyday life.

When we use rich language with our children, we are feeding their vocabulary.

Instead of “That’s a big cloud,” try “That’s a massive storm cloud rolling in.”

Instead of “Be careful,” try “Be cautious — the pavement is slippery.”

This isn’t about sounding fancy. It’s about giving children more precise language. Kids rise to the level of language they hear.

And here’s something important: vocabulary grows through back-and-forth conversation. Screens can expose kids to words, but they can’t replace engaged dialogue. Children learn best when they can ask questions, get clarification, and use new words themselves.

“The more words your child hears, the more words they’ll learn,” explains First 5 South Carolina. “Research shows that children who are exposed to a rich vocabulary early on tend to have stronger language skills. You can help by talking about what you’re doing, what you see, or how you’re feeling…Reading books, singing songs, and labeling objects in your home are great ways to help your child expand their vocabulary.”

Talk with your children. Ask open-ended questions. Let them explain things. Stretch their language gently.

It all adds up.

Being Read To: The Vocabulary Superpower

It is impossible to overstate the importance of reading aloud to your children. 

Books use words that don’t typically show up in daily conversation. Even picture books introduce language that stretches a child’s understanding.

When you read:

“The exhausted traveler trudged through the dense forest…”

You’ve just introduced exhausted, trudged, and dense, words most five-year-olds won’t hear in normal conversation.

Don’t turn story time into a lecture. Just pause briefly and explain that “trudged” means he walked very slowly because he was really tired.

Short explanations. Natural moments. Consistency over time.

Reading aloud exposes children to vocabulary beyond their independent reading level, helping bridge the gap between where they are and where they’re headed.

The Child Mind Institute notes, “Research has found that young children whose parents read to them daily have been exposed to at least 290,000 more words by the time they enter kindergarten than kids who aren’t read to regularly. And depending on how much daily reading time kids get, that number can go up to over a million words. All that exposure likely makes it easier for kids to expand their vocabularies and understand the variety of texts they’ll need to read as they get older, both inside school and out.”

If you’ve been faithfully reading to your kids, you’re already doing one of the most important things you can do for literacy.

Direct Instruction: Yes, Some Words Need to Be Taught

Some vocabulary develops naturally. Other words need to be intentionally taught — especially academic language.

Words like:

• Compare 
• Infer 
• Analyze 
• Evidence 
• Consequence 

These are the words of school. The words of science experiments and history essays. The words of test questions.

If a child doesn’t understand those words, they may struggle: not because they can’t think, but because they don’t understand the language being used.

Direct instruction doesn’t mean long, exhausting word lists. It means choosing meaningful words and making sure your child truly understands them.

• Define the word clearly.
• Use it in conversation.
• Ask your child to use it.

Repetition across different situations helps words stick.

Wide Reading: The Vocabulary Multiplier

Once your child can decode well and read fluently, wide reading becomes the engine that drives vocabulary growth.

The more children read, the more words they encounter. And the more words they know, the easier reading becomes.

It creates a positive cycle:

More vocabulary → better comprehension → more enjoyment → more reading → even more vocabulary.

This is why protecting independent reading time matters so much. Real books. Real ideas. A mix of fiction and nonfiction.

When kids read broadly, they absorb specialized vocabulary without even realizing it.

A child reading about the American Revolution learns words like taxation and independence. A book about space introduces orbit and galaxy. Reading great literature offers nuance, tone, and subtle word choice.

Vocabulary builds knowledge. Knowledge builds vocabulary. The two strengthen each other.

What You Can Do (Without Overcomplicating It)

You don’t need a complicated program.

You need consistency.

• Talk with your children often and thoughtfully. 
• Read aloud daily, even after they can read independently. 
• Explain unfamiliar words naturally. 
• Teach academic language intentionally. 
• Protect time for wide, independent reading. 

Small habits, practiced faithfully, build strong vocabularies over time. The vocabulary isn’t flashy. It doesn’t come with trendy slogans. But it is foundational.

Phonics unlocks the door to reading. Fluency allows children to move smoothly through the text. Vocabulary is what allows them to understand what’s inside.

And the more words a child knows, the more fully they can understand the books they read, and the world those books open up.