Generally speaking, babies begin to respond to their own names at around six months of age, and by around three years of age they are able to understand the meaning of adults’ words in a deeper way. There are individual differences in language development. At six months, babies can generally understand their own names and respond to them; at around eight months, they can recognize their own family members and can say simple words such as mom and dad, and they can understand simple words; at around one and a half years of age, they can understand simple commands from adults, such as picking up something. At the age of three, the baby’s language development has been more complete, for the abstract language can also be understood, and can express their own wishes, can be applied to longer sentences. Baby’s language development is a gradual process. If you find that your baby’s language development is delayed, it is recommended that you seek timely medical attention.