Weaning food is the transitional food given to a baby when they are being introduced to solid food. There are various synonyms for weaning food including transition food, complementary food, infant food and first food. Transition food is used because it is the food that helps the baby transition from exclusive breastfeeding to consuming solid food. Complementary food is used because it complements the baby's breast milk or formula, providing additional nutritional value. Infant food, on the other hand, describes the food specifically created for infants. First food is used to describe the baby's first introduction to solid food. These synonyms are useful because they offer different ways to refer to the same thing, making it easier to understand and communicate.