Understanding typical speech and language milestones helps you celebrate your child's progress and identify potential concerns early. Remember: there's a wide range of "normal," and every child develops at their own pace. These milestones represent what most children achieve by each age.
Birth to 6 Months
What You Should See
- Startles to loud sounds
- Turns toward the source of sounds
- Coos and makes pleasure sounds (oohs, aahs)
- Cries differently for different needs (hunger, discomfort, tiredness)
- Smiles when spoken to
- Recognizes your voice
- Begins babbling with a variety of sounds by 4–6 months
Red Flags
- No response to sounds or voices
- No cooing or vocal play by 4 months
- Does not smile in response to interaction
6 to 12 Months
What You Should See
- Babbles with a variety of consonant-vowel combinations (ba-ba, da-da, ma-ma)
- Responds to their name
- Understands "no" and a few familiar words
- Points to objects of interest
- Waves bye-bye and plays peek-a-boo
- Uses gestures (reaching, raising arms to be picked up)
- Says first words around 12 months (mama, dada, or another word used meaningfully)
Red Flags
- No babbling by 9 months
- Does not respond to their name by 9 months
- No gestures (pointing, waving) by 12 months
- No words by 12 months
12 to 18 Months
What You Should See
- Uses 5–20 words by 18 months (may not be perfectly clear)
- Understands simple directions ("Give me the ball")
- Points to body parts when asked
- Points to pictures in books
- Shakes head for "no"
- Uses words more than gestures to communicate
- Imitates words they hear
Red Flags
- Fewer than 5 words by 18 months
- Doesn't point to show you things
- Doesn't seem to understand simple requests
- Lost words they previously used
18 to 24 Months
What You Should See
- Uses 50+ words by 24 months
- Begins combining two words ("more milk," "daddy go," "big truck")
- Follows two-step directions ("Get your shoes and bring them to me")
- Points to pictures in books when you name them
- Familiar listeners understand about 50% of what they say
- Uses words for a variety of purposes (requesting, commenting, greeting)
Red Flags
- Fewer than 50 words by 24 months
- Not combining any words by 24 months
- Doesn't follow simple directions
- Regression — losing words or skills previously gained
2 to 3 Years
What You Should See
- Vocabulary explodes — learns new words almost daily
- Uses 2–3 word phrases consistently, moving toward short sentences
- Asks questions (What? Where? Why?)
- Names common objects and pictures
- Follows 2–3 step directions
- Familiar listeners understand about 75% of speech
- Uses pronouns (I, me, you)
- Enjoys simple stories and songs
Red Flags
- Speech is mostly unintelligible to familiar listeners
- Not using 2–3 word phrases
- Doesn't ask questions
- Difficulty following simple directions
- Frustration when communicating
3 to 4 Years
What You Should See
- Uses 4–5 word sentences
- Tells simple stories about what happened during their day
- Answers simple questions (Who? What? Where?)
- Strangers understand about 75% of speech
- Uses most speech sounds correctly, though some articulation errors are still normal (r, l, s, th, ch, sh)
- Understands concepts like colors, shapes, and sizes
- Begins using past tense and plurals
Red Flags
- Strangers have difficulty understanding the child
- Not speaking in sentences
- Can't retell a simple experience
- Stuttering that is worsening or persistent
4 to 5 Years
What You Should See
- Uses complete sentences of 5+ words
- Tells detailed stories with a clear sequence
- Answers complex questions
- Speech is mostly clear — strangers should understand almost everything
- Uses correct grammar most of the time
- Can rhyme and recognize some letters
- Engages in back-and-forth conversation
- Follows multi-step directions easily
Red Flags
- Speech sound errors that make them hard to understand
- Difficulty telling a coherent story
- Can't follow classroom-type directions
- Stuttering
- Not engaging in conversation with peers
A Note on Late Talkers
Some children (roughly 10–15%) are "late talkers" — they have fewer words than expected at 18–24 months but catch up on their own by age 3. However, there's no reliable way to predict which children will catch up and which will continue to fall behind. This is why the AAP and ASHA both recommend early evaluation rather than "waiting to see."
An evaluation doesn't commit you to therapy — it gives you information. And if therapy is recommended, starting early consistently produces the best outcomes. Learn more about our speech therapy for children and how we address language delays.
When to Get an Evaluation
If your child is not meeting the milestones for their age range — or if you have any gut feeling that something isn't right — trust your instincts and schedule an evaluation. An evaluation by a certified speech-language pathologist can provide clarity and, if needed, get your child the support they need during the critical early years of language development.
"I always tell parents that there's no such thing as 'too early' for an evaluation. Best case, you learn your child is developing typically and get some tips for supporting their growth. If there is a concern, catching it early makes all the difference." — Laura Friedman, MS, CCC-SLP, QOM
Ready to Take the Next Step?
If you have concerns about your child's speech or language development, schedule a consultation to discuss them with a certified speech-language pathologist.