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3.01.2025

How Toddler’s Language Develops

Young women and man sit with toddler on the floor, while all looking at a laptop computer screen. Cozy indoor setting.

During the toddler years (12 to 35 months), children’s language development grows rapidly. Toddlers gain the ability to say words clearly, combine words into phrases, and express their needs and wants.

Toddler Language Development

Some common characteristics of language development include:

12- to 15-month-old toddlers

15- to 18-month-old toddlers

18-month to 2-year-old toddlers

2- to 3-year-old toddlers

Adapted from Talking Point.

Word Spurt

Sometime around 18 months, many but not all toddlers, experience a word spurt1, or a sudden large increase in their spoken vocabulary. During this time, children understand that objects have names and gain the ability to fast map, which means they can hear a new word and map its meaning in their brains after hearing it only a few times.

Dual Language Learners

Some toddlers are learning two or more languages at the same time. Dual language learners tend to talk later than their peers, as their brains are learning to process multiple languages. Toddlers benefit from hearing both languages often and in a variety of circumstances.2 Once dual language toddlers start speaking, they catch up quickly and become fluent in both languages.

How to Help Toddlers’ Language Skills

Parents and caregivers can help toddlers’ language skill development by providing a language-rich and nurturing environment.

Speak clearly and use correct words and complete sentences. Some forms of baby talk, like a sing-song voice (parentese), are okay for toddlers’ language development, but avoid nonsense words (PBS).

Speak to toddlers whenever you are together. Describe what you are doing, point things out, ask questions and sing songs. According to new research from Stanford psychologists, the amount of time parents speak directly to their toddlers can make an incredible difference in the children’s language proficiency and vocabulary.3

When toddlers are trying to talk to you, be a good listener. Look at their eyes and be responsive to what they say. In today’s device-focused world, they will be more likely to speak more when they know you are interested in what they are saying.

Acknowledge toddlers’ use of language by repeating the words and phrases they say. Also help them learn how to build on language they know by expanding their words into phrases and sentences. If a toddler says, “Mommy go?” You can say, “Yes, mommy is going to work now.”

Two-sided conversations (give-and-take) are a great way to increase language development,4 because they help toddlers practice their new skills. Pose questions that require more than a yes or no answer so toddlers can use their vocabulary.

Read to your child

Remember, you play a critical role in toddlers’ language development. Engage in conversations, read together, talk, listen and interact with your toddler.

References

1 Nazzi, T., & Bertoncini, J. (2003). Before and after the vocabulary spurt: two modes of acquisition? Developmental Science, 6, 136-142.

2 Sorace, A., & Ladd, B. (2004). Raising bilingual children. Linguistic Society of America.

3 Weisleder, A., & Fernald, A. (2013). Talking to children matters: Early language experience strengthens processing and builds vocabulary. Psychological Science, 24(11), 2143-2152.

4 Zimmerman, F. J., Gilkerson, J., Richards, J. A., Christakis, D. A., Xu, D., Gray, S., & Yapanel, U. (2009). Teaching by listening: The importance of adult-child conversations to language development. Pediatrics, 124, 342-349.

Byington, T. and Kim, Y. 2015, Toddler Language Development, University of Nevada Cooperative Extension, Fact Sheet-15-05


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