Sealing
Part of speech: adjective
Definition: Used for closing securely.
Part of speech: noun
Definition: The action of the verb to seal in any sense. The hunting of seals (the animals).
Part of speech: verb
Definition: To hunt seals. To hunt seals.
Example sentence: Woe to that nation whose literature is cut short by the intrusion of force. This is not merely interference with freedom of the press but the sealing up of a nation's heart, the excision of its memory.
Waterproofing
Part of speech: noun
Definition: The treatment of something to make it waterproofA waterproof material
Part of speech: verb
Definition: To make waterproof or water-resistant.