Communication
How Communication Develops from Birth to School Age
Communication develops in overlapping stages from birth to school age: crying and cooing in early infancy, babbling and gestures by the first year, first words around 12 months, two-word phrases by age 2, short sentences by 3, and full conversations, storytelling and clear speech by school age. It includes far more than talking — listening, understanding, gestures, eye contact and turn-taking all matter. Every child has their own pace, but knowing the milestones helps parents cheer development on and seek a gentle check if needed.
From the first cry to chatting about their school day — communication unfolds in beautiful, predictable steps, and knowing the map helps you cheer it on.
In short
Communication develops in overlapping stages: from crying and cooing in the early months, to babbling and first words in the first year, to combining words and growing vocabulary as a toddler, and finally to full conversations, storytelling and clear speech by school age. It is far more than talking — it includes listening, understanding, gestures, eye contact, taking turns and reading social cues. Every child has their own pace, but there are gentle milestones worth knowing.How communication grows, step by step
Communication weaves together receptive skills (understanding), expressive skills (getting a message across) and social use of language — and it begins long before the first word.- Birth–6 months: Crying with purpose, cooing, smiling responsively, turning towards voices, and early back-and-forth 'conversations' of sounds and looks.
- 6–12 months: Babbling ("ba-ba", "da-da"), responding to their name, using gestures like pointing and waving, and understanding simple words like "no" or "bye".
- 12–18 months: First true words, following simple instructions, and pointing to show and share interest.
- 18 months–2 years: A vocabulary spurt, joining two words ("more milk"), and understanding far more than they can say.
- 2–3 years: Short sentences, asking questions, and being understood by familiar people most of the time.
- 3–4 years: Longer sentences, telling little stories, following two-step instructions, and clearer speech to strangers.
- 4–5+ years (school age): Holding proper conversations, taking turns, explaining ideas, using grammar well, and using language to learn, make friends and solve problems.
Gestures, eye contact and shared attention are the early foundations — so a baby who points, shares a look and enjoys to-and-fro play is laying the groundwork for words.
When a gentle check helps
Reach out for a friendly developmental check if: there is no babbling or gesturing by around 12 months, no single words by about 16–18 months, no two-word phrases by 2 years, speech that is very hard to understand at 3, or if a child seems to lose words or skills they once had. Earlier support is gentler and more effective — and very often brings simple reassurance.The Pinnacle way
This is general information, not a diagnosis — a clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care, never from an app or form. Our team looks at understanding, expression and social communication together, then builds an individualised plan, drawing on speech therapy where helpful. Explore more about your child's [developmental journey](/).Trusted sources
The American Speech-Language-Hearing Association on communication milestones; the CDC and HealthyChildren on developmental stages from birth to age 5; the WHO ICF framing of communication as activity and participation.Next step — Curious how your child's communication is tracking? Book a warm developmental screen for a clear picture and the right early support.
What to watch
No babbling or gesturing by around 12 months, no single words by about 16–18 months, no two-word phrases by 2 years, speech very hard to understand at age 3, little eye contact or shared attention, or losing words or skills once used.
Try this at home
Talk through your day out loud, name what your child looks at, pause to let them respond, and follow their lead in play — these everyday back-and-forth moments are the richest fuel for language.
Trusted sources
Developed by SETU Consortium · Pinnacle Blooms Network · Last reviewed 2026-06-10 · reviewed every 365 days
This is general information, not a diagnosis. A clinical AbilityScore® and any diagnosis are formed only at a Pinnacle Blooms Network centre, under qualified clinician care.
Frequently asked
Is babbling really part of communication?
Yes — babbling is a vital early stage. Sounds like "ba-ba" and "da-da" around 6–12 months are how babies practise the building blocks of speech and join in back-and-forth 'conversations'. A baby who babbles, points and shares looks is building strong foundations for words.
My child understands everything but says little — should I worry?
Understanding (receptive language) often runs ahead of talking (expressive language), and that is common. But if expressive words are not emerging on the expected timeline — for example no single words by 16–18 months — a gentle developmental check is wise, simply for reassurance and any early support.
When should communication concern prompt a check?
Consider a friendly developmental check if there is no babbling or gesturing by 12 months, no words by 16–18 months, no two-word phrases by 2 years, very unclear speech at 3, or if your child loses words or skills they once had. Earlier support is gentler and more effective.