Language: Coos to First Words
Long before the first word, your baby is learning language at an astonishing rate — and the fuel is beautifully simple: your voice, your face, and lots of back-and-forth.
The first-year roadmap
- **0–3 months:** startles to sounds, calms to your voice, begins cooing ("ooh," "aah") and social smiling around 6–8 weeks.
- **4–6 months:** laughs, squeals, blows raspberries, turns toward voices, and experiments with sounds.
- **6–9 months:** true babbling arrives — repeated syllables like "ba-ba-ba" and "da-da-da." Baby responds to their name and enjoys turn-taking games.
- **9–12 months:** babble takes on the melody of real speech, gestures bloom (pointing, waving, arms up), baby understands simple words like "no" and "bye-bye," and first words often land around the first birthday — though anywhere from 10 to 15 months is common.
How to feed language every day
- **Narrate your life:** "Now we're washing your toes… splash!" Hearing rich, varied talk is the strongest predictor of vocabulary.
- **Serve and return:** when baby coos or babbles, respond as if it were conversation, then pause for their turn. These loops literally build brain architecture.
- **Read daily from birth** — board books, silly voices, pointing at pictures.
- **Sing and play** — songs, rhymes, and peekaboo teach rhythm, anticipation, and turn-taking.
- Skip screens in the first year (video chat with grandparents is the AAP's happy exception); live faces teach best.
When to mention it to your doctor
Bring it up if baby doesn't respond to sounds or their name, isn't babbling by 9 months, uses no gestures by 12 months, or loses skills they had. Early support makes a real difference.
*Always consult your pediatrician for advice specific to your baby.*
See what matters this exact week
Get age-matched play ideas and CDC milestone checklists without turning development into a race.
Get your baby's week plan