Definition: The word "infant" is a noun that refers to a very young child, typically from birth to about one year old. Infants are usually unable to walk or talk yet.
In more formal contexts, "infant" may be used in discussions about child development, health care, or legal matters involving very young children. For example: - "The pediatrician specializes in the health of infants and young children."
Infancy (noun): The period of time when a child is an infant.
Infantile (adjective): Relating to or resembling an infant; can also refer to childish behavior.
While "infant" primarily refers to very young children, in legal contexts, it can refer to anyone under the age of legal adulthood, which varies by country.
There aren’t specific idioms or phrasal verbs that include the word "infant," but you might hear phrases like "infant mortality," which refers to the death of infants within the first year of life, often used in health discussions.
To summarize, "infant" is a simple word used to describe very young children who are usually not walking or talking yet. It’s a term commonly used by parents, doctors, and caregivers.