Toddlers pass through a holophrastic stage early in life, during which they are able to communicate complex ideas using only single words and simple fixed expressions. As an example, the word "food" might be used to mean "Give me food" and the word "up" could convey "Pick me up". Combined with
body language, context, and tone of voice, holophrasis is usually sufficient to express a child's needs. Indeed, it is based almost entirely on context. One interesting feature of holophrasis is its economy, and its emphasis on certainty rather than conceptual completeness. When expressing a complex idea, a child will often omit the more familiar concepts and use only the most recently learned word. For instance, when requesting a ball, a child is far more likely to specify "ball" than "want". Although holophrasis is non-grammatical, it forms the foundation of a child's
vocabulary. ==Linguistics==