N. interposition, interjacence, intercurrence, intervenience, interlocation, interdigitation, interjection, interpolation, interlineation, interspersion, intercalation, interpenetration, permeation, infiltration, intervention, interference, intrusion, obtrusion, insinuation, insertion, dovetailing, embolism, intermediary, intermedium, go between, bodkin|, intruder, interloper, parenthesis, episode, flyleaf, partition, septum, diaphragm, midriff, dissepiment, party wall, panel, room divider, halfway house

V. lie between, come between, get between, intervene, slide in, interpenetrate, permeate, put between, introduce, import, throw in, wedge in, edge in, jam in, worm in, foist in, run in, plow in, work in, interpose, interject, intercalate, interpolate, interline, interleave, intersperse, interweave, interlard, interdigitate, sandwich in, fit in, squeeze in, let in, dovetail, splice, mortise, insinuate, smuggle, infiltrate, ingrain, interfere, put in an oar, thrust one's nose in, intrude, obtrude, have a finger in the pie, introduce the thin end of the wedge, thrust in

Adj. interjacent, intercurrent, intervenient, intervening, intermediate, intermediary, intercalary, interstitial, embolismal, parenthetical, episodic, mediterranean, intrusive, embosomed, merged

Adv. between, betwixt, twixt, among, amongst, amid, amidst, mid, midst, in the thick of, betwixt and between, sandwich-wise, parenthetically, obiter dictum

N. ingress, entrance, entry, introgression, influx, intrusion, inroad, incursion, invasion, irruption, ingression, penetration, interpenetration, illapse, import, infiltration, immigration, admission, insinuation, insertion, inlet, way in, mouth, door, &c. (opening) 260, barway, path, conduit, immigrant

V. have the entree, enter, go into, go in, come into, come in, pour into, pour in, flow into, flow in, creep into, creep in, slip into, slip in, pop into, pop in, break into, break in, burst into, burst in, set foot on, ingress, burst in upon, break in upon, invade, intrude, insinuate itself, interpenetrate, penetrate, infiltrate, find one's way into, wriggle into, worm oneself into, give entrance to, insert

Adj. incoming

N. passage, transmission, permeation, penetration, interpenetration, transudation, infiltration, endosmose exosmose, endosmosis, intercurrence, ingress, egress, path, conduit, opening, journey, voyage

V. pass, pass through, perforate, penetrate, permeate, thread, thrid, enfilade, go through, go across, go over, pass over, cut across, ford, cross, pass and repass, work, make one's way, thread one's way, worm one's way, force one's way, make a passage form a passage, cut one's way through, find its way, find its vent, transmit, make way, clear the course, traverse, go over the ground

Adj. passing, intercurrent, endosmosmic, endosmotic

Adv. en passant