Infants typically say their first recognisable words at about:

1. Babbling begins shortly after birth and goes through stages. 2. Infants typically begin to produce recognisable words when they are around 12 months old. 3. At 3 or 6 months they are cooing or babbling, and by 36 months they speak sentences. **Why not the others:** At 3 and 6 months infants coo and babble, and 36 months is far later than the typical first words. _Source: Wikipedia, "Babbling", section "introduction" (revision 1379794682)_