This document discusses language acquisition in early childhood development. It covers why language is important for people as social beings, how children acquire language through imitation, observation, and play. It outlines the pre-linguistic and linguistic development stages, noting that in the linguistic stage children begin using words and simple phrases consisting of nouns, verbs, adverbs and pronouns. By ages 2-3, children's vocabularies expand significantly and they begin using the word "no". The conclusion reiterates that parents serve as important models during this linguistic development period.