What is Core Vocabulary?
Core vocabulary consists of a small set of high-frequency words that account for approximately 80-90% of everything we say in daily communication. These are mostly pronouns, verbs, prepositions, and articles — words like "I," "want," "go," "more," "help," and "that."
The remarkable thing about core words is their versatility. The word "go" can be used in countless contexts: "go outside," "go home," "go away," "let's go," "time to go." This flexibility makes core vocabulary incredibly powerful for AAC users.
What is Fringe Vocabulary?
Fringe vocabulary (also called extended vocabulary) consists of specific nouns and content words tied to particular topics, objects, or activities. Words like "dinosaur," "pizza," "playground," or "grandmother" are fringe words.
While these words are used less frequently, they're essential for expressing specific ideas and preferences. A child might not say "pizza" often, but when they want pizza, no other word will do!
How 2KTalk Implements This Research
Core First Approach
2KTalk's main communication boards are designed with core vocabulary front and center. The most frequently used words are always visible and easy to access, reducing the cognitive load on children.
Smart Fringe Integration
Instead of overwhelming users with thousands of fringe words, 2KTalk uses:
- Contextual suggestions based on location (school, home, hospital)
- Topic boards that group related fringe words together
- Personalized vocabulary where families can add relevant fringe words
The 80/20 Rule in Action
Our interface ensures that 80% of a child's communication needs can be met with the visible core words, while the remaining 20% (fringe vocabulary) is just one tap away in organized categories.
Why This Matters
Research shows that AAC interventions prioritizing core vocabulary lead to:
- Faster language acquisition
- More spontaneous communication
- Better generalization across contexts
- Reduced frustration for both children and caregivers
By understanding the science behind vocabulary organization, parents and therapists can better support children in their communication journey.
