An infant (from the Latin word infans, meaning "unable to speak" or "speechless") is the very young offspring of a human or other mammal. When applied to humans, the term is usually considered synonymous with baby, but the latter is commonly applied to the young of any animal. When a human child learns to walk, the term toddler may be used instead.

The term infant is typically applied to young children between the ages of 1 month and 12 months; however, definitions vary between birth and 3 years of age. A newborn is an infant who is only hours, days, or up to a few weeks old. In medical contexts, newborn or neonate (from Latin, neonatus, newborn) refers to an infant in the first 28 days after birth; the term applies to premature infants, postmature infants, and full term infants. Before birth, the term fetus is used.

Infant is also a legal term referring to any child under the age of legal adulthood.

A newborn's shoulders and hips are wide, the abdomen protrudes slightly, and the arms and legs are relatively long with respect to the rest of their body. In first world nations, the average birth weight of a full-term newborn is approximately 3.2 kg.(7 ½ lbs), and is typically in the range of 2.7–4.6 kg (5.5–10 pounds). The average total body length is 35.6–50.8 cm (14–20 inches), although premature newborns may be much smaller. The Apgar score is a measure of a newborn's transition from the uterus during the first minutes after birth.

Yeah may refer to:

A home is a place of residence or refuge. When it refers to a building, it is usually a place in which an individual or a family can live and store personal property. Most modern-day households contain sanitary facilities and a means of preparing food. Animals have their own homes as well, either living in the wild or shared with humans in a domesticated environment. "Home" is also used to refer to the geographical area (whether it be a suburb, town, city or country) in which a person grew up or feels they belong, or it can refer to the native habitat of a wild animal. Sometimes, as an alternative to the definition of "home" as a physical locale ("Home is where you hang your hat"), home may be perceived to have no physical location, instead, home may relate instead to a mental or emotional state of refuge or comfort. Popular sayings along these lines are "Home is where the heart is" or "You can never go home again".

There are cultures in which member lack a permanent home, such as nomadic peoples.