noun

• (architecture, historical) A roofed wooden shield placed over the battlements of a castle and projecting from them.
• (construction, UK, Ireland, Hong Kong) A temporary fence-like structure built around building work to add security and prevent accidents to the public.
• (chiefly Britain, India, Ireland, Hong Kong, Singapore, Malaysia, South Africa, Australia, New Zealand, Canada) A billboard.
• The practice of accumulating goods.
• (countable) A good which is hoarded.
• (psychology) An anxiety disorder characterized by a compulsive need to accumulate goods and feelings of anxiety or discomfort about discarding such goods.