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.
To loosen the clothing of (a person).
To remove the knot from laces; to undo laces.
To remove (film) from a projector.