noun a watertight structure or container
adjective able to prevent the passage of water
Watertight containers are used to protect sensitive equipment from water damage.
Watertight seals are used in buildings to prevent water leakage.
Watertight packaging is used to protect goods during shipping and storage.
Watertight compartments are essential in ship design to prevent flooding in case of damage.
A writer may use the term 'watertight' to describe a plot or argument that is logically consistent and free from any holes or inconsistencies.
A psychologist may use the term 'watertight' to describe a research study or theory that has been thoroughly tested and validated, with no room for doubt or alternative explanations.