2 year old baby only speaking one letter word how to make him speak

A. to improve speech -read different books to the child -talk to the child daily routine like the child understands you with regular eye contact -singing songs and rhymes -while talking repeat what your child says with right pronunciation and do not criticize the cxhild -avoid screen time(tv mobile laptop). leave permit the child to watch the activities that allow to improve his language -take your child outxside (open environment) and have a talk with the child regarding the things around the child -introduce new words gradually for proper understanding -speak about things child is interested in.