Definition of throngs:
(n) :
A group of people crowded or gathered closely together.
(v) :
(transitive) To crowd into a place, especially to fill it.
(n) :
A group of things; a host or swarm.
(v) :
(intransitive) To congregate.
(v) :
(transitive) To crowd or press, as persons; to oppress or annoy with a crowd of living beings.
(adj) :
(Northern England, Scotland) Filled with persons or objects; crowded.