ending vs last

ending and last both are nouns.

Word	Noun	Adjective	Verb	Adverb
ending	Yes	No	No	No
last	Yes	Yes	Yes	Yes

As nouns, last is a hyponym of ending; that is, last is a word with a more specific, narrower meaning than ending:

As nouns, last is a hyponym of ending; that is, last is a word with a more specific, narrower meaning than ending:

ending (noun)	last (noun)
the act of ending something	a person's dying act; the final thing a person can do
the end of a word (a suffix or inflectional ending or final morpheme)	holding device shaped like a human foot that is used to fashion or repair shoes
the last section of a communication	the final stage or concluding parts of an event or occurrence
event whose occurrence ends something	a unit of capacity for grain equal to 80 bushels
the point in time at which something ends	a unit of weight equal to 4,000 pounds
	the last or lowest in an ordering or series
	the temporal end; the concluding time
	the time at which life ends; continuing until dead

ending (adjective)	last (adjective)
	coming after all others in time or space or degree or being the only one remaining
	occurring at or forming an end or termination
	occurring at the time of death
	highest in extent or degree
	immediately past
	conclusive in a process or progression
	not to be altered or undone
	most unlikely or unsuitable
	lowest in rank or importance

ending (verb)	last (verb)
	persist for a specified period of time
	continue to live and avoid dying

ending (adverb)	last (adverb)
	most recently
	the item at the end