Assessment Library
Assessment Library School Readiness Bilingual Learners Bilingual Speech And Language Milestones

Bilingual Speech and Language Milestones: What to Expect by Age

Wondering when bilingual children start talking, how first words may appear across two languages, or whether your toddler or preschooler is meeting bilingual language milestones by age? Get clear, parent-friendly guidance on bilingual child speech development milestones and what patterns are typical across both languages.

Answer a few questions about your child’s communication in both languages

Share what you’re noticing about first words, vocabulary growth, combining words, and everyday understanding to get personalized guidance tailored to bilingual speech and language milestones.

How concerned are you about your child’s speech or language progress across both languages?
Takes about 2 minutes Personalized summary Private

Bilingual development can look different without being delayed

Many parents search for bilingual speech milestones for toddlers because progress across two languages does not always look the same as progress in one language. A bilingual child may use words from one language first, mix words from both languages in the same sentence, or seem stronger in the language they hear most often. These patterns can be part of typical bilingual language development stages. What matters most is your child’s total communication growth across both languages, including understanding, gestures, first words, combining words, and social interaction.

What parents often notice at different stages

First words may be split across two languages

Bilingual child first words milestones do not require the same number of words in each language. A child may say some words in one language and understand many more in the other.

Vocabulary growth is best viewed together

For bilingual toddler language milestones, it is more helpful to look at total words and communication skills across both languages rather than comparing each language separately.

Preschool language can be uneven by setting

Bilingual preschool speech milestones may look different at home and at school. Some children speak more in one language depending on who they are with and what language is used most often.

Signs of healthy bilingual language development

Growing understanding

Your child follows familiar directions, recognizes common words, and responds to routines in one or both languages, even before they say many words.

Steady communication progress

Your child uses gestures, sounds, words, and later short phrases to get needs met, share interests, and connect with others across daily situations.

Increasing word combinations

As bilingual language milestones by age progress, children often move from single words to two-word combinations and then longer phrases, sometimes mixing languages naturally.

When it may be worth looking more closely

Limited progress in both languages

If your child is having difficulty understanding or expressing themselves across both languages, not just the less-used one, that can be a more meaningful concern.

Few attempts to communicate

Concerns are stronger when a child has very few gestures, words, or social communication attempts overall, rather than simply using fewer words in one language.

Skills are not building over time

Parents often ask about bilingual speech delay milestones when they notice that first words, word combinations, or understanding are not steadily increasing with age.

Why a bilingual-focused assessment can help

Questions about when do bilingual children start talking are common, and the answer depends on exposure, opportunities to use each language, and overall communication growth. A bilingual-focused assessment can help you organize what your child understands and says across both languages, so you can tell the difference between a typical bilingual pattern and a possible delay. The goal is not to compare your child to a monolingual standard in just one language, but to understand their full communication picture.

Frequently Asked Questions

When do bilingual children start talking?

Bilingual children often begin using first words in the same general developmental window as other children, but those words may appear across two languages rather than in just one. Some children seem to have fewer words in each language separately, while their total communication across both languages is on track.

Is mixing two languages a sign of a speech problem?

No. Mixing words from both languages is common in bilingual language development stages, especially for toddlers and preschoolers. It usually reflects flexible language use, not confusion.

How should I count bilingual speech milestones for toddlers?

Look at your child’s total communication across both languages. Count words they use in either language, along with gestures, understanding, imitation, and early word combinations. This gives a more accurate picture than looking at one language alone.

What if my child speaks one language more than the other?

That can be typical. Many bilingual children show stronger skills in the language they hear or use more often. What matters is whether communication skills are growing overall and whether there are concerns across both languages.

How do I know if it is a bilingual difference or a real delay?

A bilingual difference usually means uneven skills between languages but steady progress overall. A possible delay is more concerning when understanding, speaking, gestures, and social communication are limited across both languages, not just the less-used one.

Get personalized guidance on your child’s bilingual language milestones

Answer a few questions about communication across both languages to better understand your child’s current stage, what may be typical, and whether extra support could be helpful.

Answer a Few Questions

Browse More

More in Bilingual Learners

Explore more assessments in this topic group.

More in School Readiness

See related assessments across this category.

Browse the full library

Find more parenting assessments by category and topic.