To put (something) out of consideration.
To reserve (something, especially money) for future use; to save as a backup.
To put aside, to not act on (proposals, suggestions, advice).
To categorize; especially to limit or be limited to a particular category, role, etc.
A category.
One of an array of compartments for housing pigeons.
One of an array of compartments for receiving mail and other messages at a college, office, etc.
One of an array of compartments for storing scrolls at a library.
A similar compartment in a desk, used for sorting and storing papers.