According to Piaget, the period from 2 o 7 years of age that is characterized by language development, this stage is called preoperational stage.
Preoperational stage is the level of cognitive ability attained in the second of Piaget's stages of development from about 2 to 7 years of age. At this stage the child's thought is intuitive rather than logical and is characterized by magic thinking, anthropomorphism and egocentricity.