Overview

Language and communication milestones relate to receptive language (the ability to understand words and sounds) and expressive language (the ability to use speech and gestures to communicate meaning).

Receptive language skills are the first communication skills learned. In the womb, babies hear and respond to familiar voices.

Soon after birth, your baby starts to learn expressive language skills. Around 6 to 9 months of age, most babies start to make the link between sound and meaning. By 12 months, they may have mastered a few words and usually understand far more.

Language and communication milestones

2 months old:	Makes sounds other than crying. Reacts to loud sounds. For example, they might blink or widen their eyes when they hear a loud noise.
4 months old:	Makes sounds like "ah" or "ooh." Makes sounds back when someone is talking to them. Turns head toward the sound of a parent's voice.
6 months old:	Takes turns making sounds with you. Blows "raspberries" by sticking out tongue and blowing. Makes squealing noises.
9 months old:	Makes lots of different sounds. Lifts arms up to be picked up.
12 months old:	Waves goodbye. Calls a parent "mama" or "dada" or another special name. Understands "no" by pausing briefly or stopping when you say it.