While the words "infant" and "baby" are often used interchangeably, there are subtle differences. "Baby" is a more general term referring to a young child, typically from birth until they can walk or talk. "Infant," on the other hand, usually refers to a child in the first year of life, emphasizing their dependence and vulnerability. Think of "infant" as a more specific stage within the broader category of "baby."

Here are some example sentences to illustrate the difference:

• Baby: "The baby giggled when her mother tickled her." (Translation: The baby made happy sounds because her mother was touching her gently.)
• Baby: "He's such a sweet baby; he sleeps all night!" (Translation: He's a very good baby; he sleeps the entire night.)
• Infant: "The infant was carefully monitored in the neonatal intensive care unit." (Translation: The baby in their first year of life was very closely watched by medical staff in the special care unit for newborn babies.)
• Infant: "The doctor examined the infant's reflexes." (Translation: The doctor checked the reactions of the baby that is less than one year old.)

Notice how "baby" can refer to a wider age range, while "infant" is more specific. While a baby can be an infant, an infant is always considered a baby.

Happy learning!