plural of childhood

(chiefly uncountable) The state of being a child. / The time during which one is a child, from between infancy and puberty. / (by extension) The early stages of development of something.

plural of early childhood

plural of second childhood

(idiomatic) The period or state of cognitive decline of an elderly person, characterized by childlike judgment and behavior.

plural of childhood friend

A stage in human development, generally including toddlerhood and some time afterwards.

(psychiatry) A rare condition characterized by deterioration of language, social function, and motor skills in a child after normal development for the child's first three years.

The formal teaching and care of young children by people other than their family, or in settings outside of the home, before the age of normal schooling.