Interposition

n.	1.
	1.	The act of interposing, or the state of being interposed; a being, placing, or coming between; mediation.
	2.	The thing interposed.

Noun	1.	interposition - the action of interjecting or interposing an action or remark that interrupts Synonyms: interjection, interpellation, interpolation
	2.	interposition - the act of interposing one thing between or among others

encroachment, entrance, entrenchment, impingement, imposition, incursion, infiltration, influx, infringement, injection, inroad, insinuation, interagency, intercession, interference, interjection, interloping, intermediation, interposure, interruption, intervention, intrusion, invasion, involvement, irruption, mediation, obtrusion, stepping in, trespass, trespassing, unlawful entry