When do babies start talking?

Babies start talking  that is, attempt to express themselves in words with meaning anywhere between 9 and 14 months. Some perfectly normal babies don't say a recognizable word until their 18 month, whereas some babies begin to communicate in words or word-sounds ("ba-ba" for bye-bye, bottle or ball; "da" or "da-da" for dog, dad or doll) as early as 7 months.