interpose vs inject

interpose and inject both are verbs.

Word	Noun	Adjective	Verb	Adverb
interpose	No	No	Yes	No
inject	No	No	Yes	No

As verbs, interpose and inject are synonyms defined as:

Other synonyms of interpose include come in, interject, put in, throw in.

interpose (verb)	inject (verb)
to insert between other elements	give an injection to
to put forth by way of intervention	to introduce (a new aspect or element)
be or come between	to insert between other elements
get involved, so as to alter or hinder an action, or through force or threat of force	feed intravenously
	take by injection
	force or drive (a fluid or gas) into by piercing