Legal Definitions:
* Minor: This is the most common legal definition. It usually refers to someone under the age of 18, though this varies by country and jurisdiction.
* Child: Legal definitions of "child" can differ widely, often focusing on specific rights and protections. For example, in the United States, a "child" might be defined as someone under 18 for certain laws, but under 21 for others, like buying alcohol.
Developmental Stages:
* Infancy: Birth to 1 year
* Toddler: 1 to 3 years
* Preschool: 3 to 5 years
* Early Childhood: 5 to 8 years
* Middle Childhood: 8 to 12 years
* Adolescence: 12 to 18 years
Social and Cultural Definitions:
* Childhood: This term is more flexible and often encompasses the time from infancy to adolescence.
* Teenager: This term refers to young people in their teenage years (usually 13 to 19).
Ultimately, how you define "child" will depend on the context. It's important to be aware of the different definitions and use the one that's most appropriate for your situation.