stowaway

/ˈstoʊəˌweɪ/
noun
  1. A person who hides on a ship, airplane, or other vehicle in order to travel without paying or being detected.
    • After a long journey across the ocean, the stowaway was handed over to the authorities at the port.
    • The young stowaway was discovered hiding in the landing gear compartment of the airplane.
    • The crew found a stowaway in the cargo hold just before the ship departed.
  2. A person or thing that is hidden or goes unnoticed in a group or situation, often causing surprise later.
    • A small stowaway kitten was found in the back of the moving truck after the family arrived at their new home.
    • In the box of donated clothes, there was a stowaway — a valuable antique watch.
    • The virus acted like a stowaway, spreading silently through the population before anyone noticed.
What does "stowaway" mean? | whatsthatwordmean | whatsthatwordmean