last vs ending

last and ending both are nouns.

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

As nouns, ending is a hypernym of last; that is, ending is a word with a broader meaning than last:

Other hypernyms of last include conclusion, finish.

As nouns, ending is a hypernym of last; that is, ending is a word with a broader meaning than last:

Other hypernyms of last include end.

As nouns, ending is a hypernym of last; that is, ending is a word with a broader meaning than last:

Other hypernyms of last include end.

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

last (adjective)	ending (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

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

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