Most babies say a first word around their first birthday, and one or two more besides "mama" and "dada" by 15 months. These are *ranges*, not deadlines (NIDCD; CDC).

Talking typically builds up in layers:

Some babies have a word at 9 months. Some take until 16 or later. What matters is the pattern of communication, not a single milestone.

Quick reference: baby talking milestones

QuestionAnswer
When does babbling start?Often 4–6 months, more consistent by 7–9 months.
When are first words?Around 12 months, one or two besides "mama/dada" by 15 months.
When do phrases start?Two words together by about 24 months.
When to get help?No babbling by ~9 months, no gestures, no words by ~16–18 months, or regression.

A simple way to think about early speech

```
TALKING BUILDS UP IN LAYERS
sounds → babbling → first words → phrases → sentences
(4–6mo) (7–9mo) (12–15mo) (by 24mo) (2–3yr)
```

Speech is a layer cake. Each layer needs the one below it. The first word doesn't appear from nowhere, it sits on months of sound work. This is why "is my baby progressing?" rarely answers in a single week.

What actually counts as "talking"?

Speech development starts long before the first word. Look for:

Many babies understand language months before they can say it (NIDCD, 2024).

This is where most parents get stuck, they wait for "the first word" and end up worried much later than necessary. The signal you want is gestures + comprehension + sound + intent. Words are the visible top of an iceberg that's been growing for months.

Baby talking milestones (0–3 years)

AgeWhat to expect
0–3 monthsCooing, reacting to voices
4–6 monthsBabbling (ba/da sounds)
6–9 monthsRepeating sounds, responding to name
9–12 months"Mama" or "dada" for a parent, waves bye-bye, understands "no"
12–18 monthsOne or two words by 15 months, three or more by 18, pointing
18–24 monthsTwo words together ("more milk")
2–3 yearsShort sentences, fast vocabulary growth

For the "word count" lens at age 2 vs the "is this a real delay" question, see late talker vs speech delay: how to tell the difference.

When do babies say their first word?

The NIDCD puts one or two words ("hi", "dog", "mama") by the first birthday. The CDC checklist expects one or two words besides "mama" and "dada" by 15 months and three or more by 18 months. Some babies get there at 9 months. Some take longer.

What counts as a "first word":

What doesn't count yet:

If you're at 12 months with no first word but your baby points, gestures, and responds to their name, this is usually normal. Watch for the next 2–4 months.

Why the ages you remember may be wrong

If you read milestone lists a few years ago, some of your numbers are out of date. In 2022 the CDC and the AAP rebuilt the CDC checklists so each milestone is one that at least 75% of children reach by that age, instead of the average age. A third of the milestones they kept moved to a different age, and two thirds of those moved later (Zubler et al., 2022).

That cuts both ways. A baby who has no word yet at 12 months is not behind the new list. But a child who misses a milestone on it is no longer "in the slower half": three in four children already do it. The authors wrote it this way on purpose, to discourage waiting and seeing.

When do babies start saying "mama" and "dada"?

As sounds, in babbling: often in the second half of the first year (NIDCD). With meaning: by the first birthday, when most babies call a parent "mama", "dada" or another special name (CDC).

Important distinction:

Cultural note: babies don't pick "mama" or "dada" because they love you most. Those sounds are easiest to make.

My 1-year-old isn't talking: should I worry?

At 12 months, most babies say at least one real word, but not all do, and that's fine if other communication signals are strong. Look at these instead of word count:

If yes to most, you're likely watching a late talker, not a delay. Germany's federal health institute describes a late talker as a 2-year-old with fewer than 50 words or no two-word combinations, and says a good half of them catch up on their own somewhere between their third year and school age (BIÖG). The next CDC checkpoints are 15 and 18 months.

When do babies say "no"?

Usually between 16 and 24 months. Often earlier if older siblings are around. "No" is special because it requires three things: a sound your baby can make, an idea they want to express (refusal/preference), and a sense of autonomy.

What this looks like in real life

Development rarely happens in a straight line:

Zoom out over days or weeks and you often see clear progression. Zoom in on a single day and you see chaos.

A pattern most parents miss

The real signal isn't "has my baby said a word yet?", it's "is communication increasing over time?". Look for:

Even if words aren't there yet. Speech is not a switch, it's a build-up. For broader behavior context (especially when frustration spikes around communication breakdowns), see the toddler behavior management guide.

What helps babies start talking

Decision logic: which next step?

Walk this top to bottom:

What NOT to do

When to be concerned

Talk to your pediatrician if you notice:

Early support can make a big difference, and the evaluation itself doesn't lock anything in, it just opens access to therapy if needed. The CDC checklists were rebuilt in 2022 precisely to move families away from waiting (Zubler et al., 2022). For the full developmental arc by age, see the parent's guide to toddler speech development, and when you book that visit, how to prepare for a pediatric visit with your child's data makes it count.

Frequently asked questions

What age do babies start talking?

Most babies say a first word around 12 months and a couple more by 15, but communication starts earlier with eye contact, gestures, and babbling. Word count alone is the wrong number to chase.

How can I encourage my baby to talk?

Talk during routines, follow their attention, read daily, and pause to let them respond. Aim for back-and-forth interaction rather than performance, "sing the word" beats "make them repeat it."

What are early signs of speech delay?

No babbling by ~9 months, no gestures, weak response to sound/name, regression, or no words by ~16–18 months are the classic flags. One sign in isolation is rarely a verdict; two or more sustained over weeks is the threshold to ask.

Do hearing problems affect speech?

Yes. Hearing is a key input for imitation and word learning (NIDCD, 2024). Even mild hearing loss or chronic ear fluid can flatten speech progress, so hearing screens are a low-risk first step when speech is delayed.

Late talker at age 2: is it serious?

A late talker is a 2-year-old with fewer than 50 words or no two-word combinations. A good half catch up on their own, somewhere between the third year and school age; the rest benefit from speech therapy (BIÖG). If that describes your 2-year-old, raise it at the next visit rather than waiting for three.

Are bilingual babies later to talk?

Slightly later in each individual language, but total vocabulary across both languages is typically on track. Bilingualism is not a cause of speech delay.

Can babies skip babbling and go straight to words?

Very rarely. Babbling is the speech motor system warming up, words almost always come through babbling.

Does pacifier use delay speech?

Heavy daytime pacifier use can reduce vocal practice. Limit to sleep and short comfort windows.

When should a baby be saying full sentences?

Most 2-year-olds use two- or three-word sentences and build up to four, five or six words over that year (AAP). By 3, most use two- or three-word phrases to talk about and ask for things (NIDCD).

How KidyGrow helps you read communication progress

Speech worries feel confusing because the days look random. What you can hold onto is when things happened.

The milestone checklist has a Communication domain: you mark what your child does, and if something worries you, you note it as a red flag with the date you first saw it. "Since when?" is the first question a pediatrician asks and the one nobody remembers.

Short notes go in as the day happens; Insights shows the last 14 days rather than just today. KidyGrow learns your child's rhythm and names the patterns it finds. It does not count words or gestures, and when there isn't enough yet, it says so.

You walk in with a timeline rather than a guess.

About this guide: KidyGrow is a parent-built app that learns your child's development and adapts as you go. This article is based on AAP, CDC and NIDCD pediatric guidance, plus peer-reviewed late-talker research. Educational content; not a diagnostic tool. If you're worried, ask your pediatrician, that's always the right next step. Last updated September 2026.

The thing nobody tells you

Babies don't suddenly start talking. They build up to it, sound by sound, gesture by gesture, week by week. The first word is exciting, but it's not the start of language. It's the moment the camera finally catches what was already happening.

If you're not sure whether your baby is "on track," don't try to decide from today. Look at the pattern over a few weeks. That's where the real answer shows up.

Sources

  1. National Institute on Deafness and Other Communication Disorders (NIDCD). Speech and Language Developmental Milestones. https://www.nidcd.nih.gov/health/speech-and-language
  2. Centers for Disease Control and Prevention. Important Milestones: Your Baby By One Year. https://www.cdc.gov/act-early/milestones/1-year.html
  3. Centers for Disease Control and Prevention. Important Milestones: Your Baby By Fifteen Months. https://www.cdc.gov/act-early/milestones/15-months.html
  4. Centers for Disease Control and Prevention. Important Milestones: Your Baby By Eighteen Months. https://www.cdc.gov/act-early/milestones/18-months.html
  5. Zubler JM, Wiggins LD, Macias MM, et al. (2022). Evidence-Informed Milestones for Developmental Surveillance Tools. Pediatrics, 149(3), e2021052138. https://pubmed.ncbi.nlm.nih.gov/35132439/
  6. Bundesinstitut für Öffentliche Gesundheit (BIÖG). Schwierigkeiten bei der Sprachentwicklung erkennen. kindergesundheit-info.de. https://www.kindergesundheit-info.de/themen/entwicklung/entwicklungsschritte/sprachentwicklung/frueherkennung-sprachstoerung/
  7. American Academy of Pediatrics. Language Development: 2 Year Olds. HealthyChildren.org. https://www.healthychildren.org/English/ages-stages/toddler/Pages/Language-Development-2-Year-Olds.aspx