interject vs interpose

interject and interpose both are verbs.

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

As verbs, interject and interpose are synonyms defined as:

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

interject (verb)	interpose (verb)
to insert between other elements	to insert between other elements
	to put forth by way of intervention
	be or come between
	get involved, so as to alter or hinder an action, or through force or threat of force