Vocabulary explosion begins: from first words to meaningful phrases
The period from 12-18 months marks the beginning of the vocabulary explosion. Toddlers typically go from saying a handful of words to 20 or more. They begin to understand that everything has a name and eagerly point and vocalize to learn new words. Communication becomes increasingly intentional, with toddlers using words and gestures to get their needs met.
Consider a speech-language evaluation if your child shows any of these signs during ages 12 to 18 months:
Try these evidence-based activities to encourage speech and language skills during ages 12 to 18 months.
When your toddler says 'ball,' you say 'Yes! Big ball! You're throwing the ball!' This models longer sentences and new vocabulary.
Hold up two items: 'Do you want MILK or JUICE?' Wait for them to point or attempt a word. This encourages communication.
Hide a favorite toy partially visible. Ask 'Where's the bear?' This builds vocabulary and problem-solving.
Songs like 'Wheels on the Bus' and 'Head, Shoulders, Knees, and Toes' teach vocabulary through movement and repetition.
Most 18-month-olds say between 5-20 words, though there's wide variation. Some say 50 words while others say only 5. Focus on whether vocabulary is growing each month. If your child says fewer than 5 words by 18 months, consider a speech evaluation.
While some 15-month-olds say several words, others are still in the pre-verbal stage. Watch for other communication: pointing, making eye contact, understanding words, using gestures. If these are present, words often follow. If you're concerned, early intervention is always beneficial.
Yes, unclear speech is completely normal at this age. At 18 months, even familiar listeners understand only about 25% of what a toddler says. Words are often simplified (saying 'ba' for 'ball'). Clarity improves significantly over the next year.
Instead of correcting, model the correct pronunciation naturally. If they say 'wawa,' respond with 'Yes, you want WATER!' This provides the correct model without discouraging communication attempts.
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