How many words should an 18-month-old say?

What the checklist says

At 18 months, the CDC lists trying three or more words besides mama or dada and following a simple spoken direction without a gesture. These are skills most children can do by this age, not a test of whether a child’s language is “normal”.¹

Children’s vocabularies vary. Research inventories and Wordbank describe groups of children in particular languages; their averages are not an individual diagnosis.^{2, 3} Do not treat a handful of words as an automatic all-clear, or wait until there are no words to ask.

What to put on your word list

Write examples of words your child uses meaningfully, even if the pronunciation is still developing: “ba” for ball, for example. Note animal sounds and names too. Bring the list and a few examples of how your child communicates.²

• Record signs and gestures separately. A sign is meaningful communication, but it should not be silently added to a spoken-word total. Tell the evaluator how your child uses each.⁶
• Include every language. For example, leche and milk are two word forms for one concept. A professional should consider language exposure and skills across languages; adding words alone is not an assessment.^{4, 9}
• Note change. What is new, what seems difficult, and whether a skill has disappeared.

Look at understanding as well as speaking

Does your child respond to familiar language and follow a simple direction without your pointing? Do they show you things and try to share your attention? These observations help an evaluator understand the whole picture. Understanding is important, but good understanding does not guarantee that a child with few spoken words will catch up without support.^{1, 5, 6}

When to call

You do not need a particular word count to ask. Contact your child’s doctor about a missed milestone, limited gestures, difficulty understanding, hearing concerns, or anything else that worries you. Contact them promptly if words or other skills are lost. Ask about screening, a hearing check and a speech-language assessment.^{1, 6, 10}

In the U.S., families of children under three can request a free early-intervention eligibility evaluation without a doctor’s referral. Later services and costs depend on eligibility and the state’s rules.^{11, 12} Our late-talker guide explains the next steps.

Does there have to be a word spurt?

No single growth pattern fits every child. Research has questioned whether vocabulary always grows through a sudden “spurt”.⁷ A steady increase is useful to record, but the shape of a graph is not a reason to dismiss a concern.

Things to do together

Talk about what your child notices, read picture books, and leave time for a response. You can add a word to their attempt: “dog” becomes “big dog.”^{1, 8} Our free cards and paper cards are optional pictures to talk about, rather than a treatment.