my baby is completed 2years 9month's but still he is not speaking only amma, Akka thai that much words only he is speaking

A. A 3 year old who can comprehend and non-verbally communicate but cannot say many words may have a speech delay. One who can say a few words but can't put them into understandable phrases may have a language delay. It is better to consult with your doctor or a speech therapist.