THESAURUS
fit in
accord, be there, belong, conform, correspond, dovetail, fall in with, fall into line, fit, follow the crowd, follow the fashion, follow the rule, get in line, go, go through channels, harmonize, have its place, have place, implant, infix, inlay, jibe, keep in step, pass muster, play the game, square, stay in line, tally, tessellate, toe the mark
ROGET THESAURUS
fit in
Interposition
VB
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.