Definitions:

1. Encompasses the period when an individual is a baby, marked by rapid growth and significant physical, emotional, and cognitive development. NOUN
   • The struggles of sleepless nights and diaper changes are all part of babyhood.
2. Refers to the earliest stage of a person's life, from birth to the point where they transition out of infancy. NOUN
   • Photographs from her babyhood showed a happy, chubby-cheeked infant.

Synonyms:

• Childhood Early years Formative years
• infancy