rivet (noun) /ˈɹɪvət/
1
A cylindrical mechanical fastener that attaches multiple parts together by fitting through a hole and deforming the head(s) at either end.
2
(figurative) Any fixed point or certain basis.
rivet (verb) /ˈɹɪvət/
1
(transitive) To install rivets.
2
(transitive, figurative) To command the attention of.
3
(transitive, figurative) To make firm or immovable.