A small child can be referred to by many synonyms, depending on the context of the situation. A popular synonym is toddler, which is commonly used to denote a child between the ages of one and three years old. Another synonym is a little one, which can include children between three and five years old. Infant can also be used to describe a small child, specifically those who are under a year old. Other synonyms for small children include cherub, bairn, tyke, tot, and youngling. It is important to note that using the appropriate synonym depends on the stage of development and age of the child.