my baby is 18 months old and he is not talking a little word yet..is it normal

A. Hello there ma’am,. Babies start to speak small words like maa and paa by the age of two yaers and make small sentences by the age of three years. talk more with baby .. You can speak more with baby even if did not respond much you can talk to baby more as eventually baby will speak clearly. and should avoid any screen time of television and mobile . Thanks