Basis or justification for something.
The sediment at the bottom of a liquid, or from which a liquid has been filtered.
The collective land areas that compose a larger area.
Any fixed point or certain basis.
A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end.
To command the attention of.
To attach or fasten parts by using rivets.
To make firm or immovable.
To install rivets.