Transient tachypnea of the newborn (TTN) is a condition that affects some newborns and causes rapid breathing. There are several synonyms for TTN that indicate the same condition, such as wet lung or transient respiratory distress. Other synonyms for TTN include delayed respiration of the newborn, neonatal respiratory distress syndrome, and transient fetal lung fluid. Although TTN is a common condition in newborns, parents and caregivers must remain vigilant of any signs of concern, such as difficulty breathing, cyanosis or bluish discoloration, and fatigue. It is essential to seek prompt medical care and follow the recommended treatment plan to ensure a healthy outcome for the newborn.