projection vs tail end

projection and tail end both are nouns.

Word	Noun	Adjective	Verb	Adverb
projection	Yes	No	No	No
tail end	Yes	No	No	No

As nouns, tail end is a hyponym of projection; that is, tail end is a word with a more specific, narrower meaning than projection:

projection (noun)	tail end (noun)
the act of expelling or projecting or ejecting	the fleshy part of the human body that you sit on
the act of projecting out from something	any projection that resembles the tail of an animal
any structure that branches out from a central support	the time of the last part of something
the representation of a figure or solid on a plane as it would look from a particular direction
a planned undertaking
a prediction made by extrapolating from past observations
the projection of an image from a film onto a screen
the acoustic phenomenon that gives sound a penetrating quality
(psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else
any solid convex shape that juts out from something