Speech and language are closely connected, but they are not the same thing. Speech is how we produce sounds and words. Language is how we understand and use words, sentences, and ideas to communicate.
A child can have difficulty mainly with speech, mainly with language, or with both. The difference is not always obvious at home, and only a qualified professional can evaluate an individual child.
Speech delay usually affects how words sound
A child with a speech difficulty may know what they want to say but have trouble producing sounds clearly. You might notice that familiar adults understand the child better than other people, certain sounds are frequently left out or replaced, or speaking seems effortful.
Some sound differences are expected while children are learning to talk. What is typical depends on the child’s age, development, and the sounds involved.
Language delay affects understanding or using words and ideas
Language includes both receptive language—understanding what others say—and expressive language—using words, sentences, gestures, or other methods to share meaning.
You might notice difficulty following age-appropriate directions, learning or combining words, answering questions, or taking part in back-and-forth conversation. A child may have stronger understanding than expression, or the reverse.
Quick comparison
- Speech: the sounds, clarity, voice, and flow of spoken words.
- Language: understanding words and using them to communicate ideas.
- Both can overlap: a child may need support in more than one area.
What parents can do next
Write down a few concrete examples of what you see and when it happens. Note how your child communicates with familiar and unfamiliar people, what they understand, and whether you have concerns about hearing.
Share those observations with your child’s pediatrician and ask whether a hearing check or evaluation by a speech-language pathologist would be helpful. In the United States, families can also contact their local early-intervention program for children under age 3; a doctor’s referral is not always required.
Use our questions to ask about your child’s speech to prepare for that conversation.
When to seek help promptly
Talk with a healthcare professional if your child loses skills they previously used, seems not to hear, or you have any persistent concern about communication or development. You do not need to wait for a child to “grow out of it” before asking questions.
Trusted sources
- American Speech-Language-Hearing Association: Speech and Language Development
- CDC: Developmental Milestones
This article provides general educational information and is not a diagnosis or a substitute for care from a qualified professional.