jam
/ˈjam/
noun
a food made by boiling fruit and sugar to a thick consistency
verb
to become blocked, wedged, or stuck fast
to become unworkable when a movable part becomes blocked or stuck
to force one's way into a restricted space
The line jammed and the boat hung useless.
the gun jammed
noun
a crowded mass that impedes or blocks movement
an act or instance of becoming blocked or jammed
the quality or state of being blocked, stopped, or jammed
a traffic jam
paper causing a jam of the copier