| Average Age | Language Development |
|---|---|
| Newborn | Can distinguish different phonemes; Can separate own language from foriegn languages. |
| 4 months | Recognize own name sensitive to serial order of words in a sentence; Can separate syllables within words. |
| 7 months | Babbling; Starts understanding first words. |
| 10 months | Starts babbling only in sounds of own language. |
| 12 months | Babbling with stress and intonation of actual speech; produces first words; Starts using words for specific people and objects. |
| 18 months | Understands up to 50 words; producing two word sentences. |
| 24 months | Starts speaking in multi-word sentences with a clear word order forming; Starts using pronouns. |
| 60 months | 6,000 word vocabulary; Produces and understands complex sentences. |