Improve Vocabulary

Building vocabulary is the foundation for reading comprehension, fluency, and academic success.

With Readability’s AI-powered reading app, students explore words in context, hear definitions aloud, and develop the confidence to tackle complex texts. The result? A measurable improvement in reading skills, comprehension, and overall academic performance.

Try 30 Days Free!
Kid reading in Tablet
Mobile screen showing vocabulary app with word list from Academy to Popularity sorted A to Z.

Grow Vocabulary with Readability

Readability helps children grow their vocabulary through immersive reading, active engagement, and real-time AI support.

As students read aloud, they encounter and decode new words. Our smart tutor listens, offers pronunciation feedback, and explains word meanings, boosting retention and deepening understanding. This kind of vocabulary instruction directly supports the Science of Reading and reinforces phonics, fluency, and comprehension.

How It Works: AI-Powered Vocabulary Builder

With every word your child reads, Readability’s AI:

- Pronounces the word
- Explains the meaning and usage
- Delivers context-rich support
- Adds the word to a personalized vocabulary list for continued practice

This approach makes Readability one of the best vocabulary apps for kids, ideal for English Language Learners, students with dyslexia, and those working to improve reading fluency and comprehension.

Meet your Child at their Level

We give parents (and educators) the opportunity to spend quality time with their kids while practicing vocabulary. Children can review words again and again to master meaning, context and pronunciation, while you cheer them on.

When Readability becomes part of a child's daily routine, they will build confidence and improve their grades, leading to future academic success.

Want to know more?

Vocabulary Apps for Kids: Engaging Ways to Grow Word Knowledge at Home and On-Screen

Discover vocabulary apps for kids plus everyday routines parents can use to grow word knowledge. Learn what to look for in apps and how to make new words stick through reading, talk, and playful practice.

Read More

Building Stronger Readers: Vocabulary Instruction for Kids

Explore vocabulary instruction for kids with research-based strategies, read-alouds, games, and multisensory tips, plus an AI tool for K–5 and ELLs.

Read More

SEL and Storytelling: Using Literature to Build Emotional Vocabulary

Learn how SEL and storytelling grow emotional vocabulary, boost empathy, and improve reading skills with Readability’s AI-powered support.

Read More
Unhappy kid in reading desk.
ELL Student Survival Tips: How Can I Improve My Reading Skills

Our classrooms are growing more and more with diverse student populations. In 2017, English Language Learner (ELL) students accounted for 10 percent

Learn More
Kid engaging in reading activity in tablet with parent.
ELL Student Survival Tips: How Can I Improve My Reading Skills

Many schools have announced plans to return to school for a part-time basis in the classroom. While two (or three) days may be spent in a normal

Learn More
Kid engaging in reading activity in tablet with parent.
What Reading Programs for Struggling Readers Are Great To Use At Home?

Learning to read for the first time can be challenging and many children might struggle with learning this valuable skill. The best way to help your.

Learn More

Fun & educational grade-level stories come to life with bright illustrations.

For K-6th grade, available on:

Mobile screen showing Reader Mode with a child profile and four colorful book covers visible.
Smartphone
iPhone & Android
Apple Store CTA
Tablet
iPad & Tablet
Amazon Kindle CTA
Laptop
Chromebook & MacBook
Google Play Store CTA