Generally, a baby starts speaking between 10-14 months and before that they just try to recognize the words they hear around. Though, the first words they start speaking with are mostly mama or papa after reaching about a year old. But those words are also not spoken very clear in pronunciation nor complete. Sometimes, a baby utters such words abruptly which make parents laugh because of not having any idea about those words. A baby delivers these words mostly after finding them happy, relaxed and comfortable.