interjection vs interposition

interjection and interposition both are nouns.

Word	Noun	Adjective	Verb	Adverb
interjection	Yes	No	No	No
interposition	Yes	No	No	No

As nouns, interjection and interposition are synonyms defined as:

interjection and interposition: the action of interjecting or interposing an action or remark that interrupts

Other synonyms of interjection include interpellation, interpolation.

interjection (noun)	interposition (noun)
the action of interjecting or interposing an action or remark that interrupts	the action of interjecting or interposing an action or remark that interrupts
an abrupt emphatic exclamation expressing emotion	the act or fact of interposing one thing between or among others