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Can My Child Use AAC in More Than One Language?

VOIS Team · 25 September 2026

In a multilingual home, it is natural to wonder how many of those languages should appear in your child's AAC system.

Should the board be in English because that is what they use at school? Should it use the language spoken at home? Or will having more than one language make communication more confusing?

For many families, the answer does not have to be one language or the other.

A communication system should reflect your child's world

A communication system should reflect the languages your child hears and uses with the people around them.

If Mum speaks isiZulu, Dad speaks English, and grandparents use Sesotho, those languages are all part of the child's world. It makes sense for their communication system to reflect that.

A child should not have to leave one of their languages behind in order to use AAC.

Think about where, and with whom

The most useful approach is usually to think about where and with whom the child communicates.

At school, English may be the main language used by teachers and therapists. At home, another language may feel more natural and familiar. Both can matter.

You may also find that certain words are always used in one language in your family. A child might hear a favourite food, nickname or routine phrase in isiZulu every day, even if most of their school communication happens in English.

Those details are important because AAC works best when the words available feel relevant to the child's real life.

Keep some vocabulary consistent across settings

It can also help to keep some vocabulary consistent across settings.

Words such as help, stop, more, finished and go may be useful at home, at school and in therapy. The exact language can vary depending on the situation, but the underlying communication need stays the same.

Talk to the people supporting your child

This is where collaboration can help.

If your child uses AAC at school or in therapy, speak to the people supporting them about the words being used there. You do not need to make home and school identical, but it can be useful to know which words are important in both places.

The same applies at home.

Parents and caregivers know which words, phrases, people and routines matter most in family life. That information is just as valuable when building an AAC system.

How VOIS fits in

VOIS lets families record vocabulary in voices their child knows, using the languages that are part of everyday family life.

That means a communication card does not have to sound generic or disconnected from the child's everyday world.

A word can be recorded by Mum, Dad, a caregiver or therapist, in the language that makes the most sense for that situation.

There is no single correct setup

The goal is not to force every word into every language.

It is to give the child access to communication across the different parts of their life.

For one family, that may mean mostly English with a few important home-language words. For another, it may mean two or more languages used regularly.

There is no single correct setup.

The best AAC system is one that helps the child communicate with the people around them, in the places where communication actually happens.

This article provides general educational information and is not a substitute for individual advice or assessment from a qualified speech-language therapist or healthcare professional.