collar button
noun
a button or stud for fastening a detachable collar to the neckband of a shirt or for fastening together the ends of a collar or neckband.
Origin of collar button
An Americanism dating back to 1885–90
Words nearby collar button
collapse,
collapse of communism,
collapse therapy,
collapsible,
collar,
collar button,
collar cell,
collar rot,
collar-button abscess,
collarbone,
collard