Vicksburg vs besieging

Vicksburg and besieging both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vicksburg	Yes	No	No	No
besieging	Yes	No	No	No

Vicksburg (noun)	besieging (noun)
a decisive battle in the American Civil War (1863); after being besieged for nearly seven weeks the Confederates surrendered	the action of an armed force that surrounds a fortified place and isolates it while continuing to attack
a town in western Mississippi on bluffs above the Mississippi River to the west of Jackson; focus of an important campaign during the American Civil War as the Union fought to control the Mississippi River and so to cut the Confederacy into two halves