beleaguering vs besieging

beleaguering and besieging both are nouns.

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

As nouns, beleaguering and besieging are synonyms defined as:

beleaguering and besieging: the action of an armed force that surrounds a fortified place and isolates it while continuing to attack

Other synonyms of beleaguering include military blockade, siege.

beleaguering (noun)	besieging (noun)
the action of an armed force that surrounds a fortified place and isolates it while continuing to attack	the action of an armed force that surrounds a fortified place and isolates it while continuing to attack