watertight

a watertight alibi; a watertight contract.

All double bottom is watertight and oiltight. Compressed air testing and water-pressure tests can be carried out according to the classification society and by Owner's representative.

The watertight seal prevented any leaks from the pipe.

Make sure the container is watertight before storing liquids in it.

The agreement was watertight and legally binding.

The defense lawyer presented a watertight alibi for the suspect.

The company's security measures are watertight to protect sensitive information.

The new roof is watertight, so there are no more leaks during rainstorms.

The contract had to be watertight to avoid any misunderstandings in the future.

The team worked hard to create a watertight defense strategy for the upcoming match.

The detective's investigation was thorough and watertight, leading to the arrest of the criminal.

The company's financial records are kept in a watertight system to prevent fraud.