end vs ending

end and ending both are nouns.

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

As nouns, end and ending are synonyms defined as:

Other synonyms of end include close, closing, conclusion.

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

Other hypernyms of end include conclusion, finish.

As nouns, end and ending are synonyms defined as:

end (noun)	ending (noun)
the part you are expected to play	the act of ending something
(American football) a position on the line of scrimmage, designating players at each end of the defensive line	the end of a word (a suffix or inflectional ending or final morpheme)
a piece of cloth that is left over after the rest has been used or sold	the last section of a communication
a final part or section	event whose occurrence ends something
the state of affairs that a plan is intended to achieve and that (when achieved) terminates behavior intended to achieve it	the point in time at which something ends
the last section of a communication
the final stage or concluding parts of an event or occurrence
either extremity of something that has length
a boundary marking the extremities of something
the surface at either extremity of a three-dimensional object
one of two places from which people are communicating to each other
(football) the person who plays at one end of the line of scrimmage
a final state
the point in time at which something ends

end (verb)	ending (verb)
bring to an end or halt
put an end to
have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
be the end of; be the last or concluding part of