"Child" is a synonym of words like "kid," "youth," or "youngster," which all refer to a young person. An antonym of "child" could be "adult," which refers to a fully matured individual.
find.
Constant, persisting or unceasing.
starving.
Meridian
Christians
Descend
design
Peninsula
solo
DocileTractableAmenableConformableLaw-abidingSubmissive
prairie, flatland....
Chart or Atlas.