trunk vs posterior

trunk and posterior both are nouns.

Word	Noun	Adjective	Verb	Adverb
trunk	Yes	No	No	No
posterior	Yes	Yes	No	No

trunk (noun)	posterior (noun)
a long flexible snout as of an elephant	the fleshy part of the human body that you sit on
luggage consisting of a large strong case used when traveling or for storage	a tooth situated at the back of the mouth
compartment in an automobile that carries luggage or shopping or tools
the body excluding the head and neck and limbs
the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber

trunk (adjective)	posterior (adjective)
	located at or near or behind a part or near the end of a structure
	coming at a subsequent time or stage