interregnum

n. 无王时期，无人统治

interoffice, interpellate, interpellation, interpenetrate, interpenetration, interpersonal, interplanetary, interplay, Interpol, interpolate, interpolation, interpose, interposition, interpret, interpretation, interpretative, interpreter, interpreting, interpretive, interracial, interrelate, interrelated, interrelation, interrogate, interrogation, interrogative, interrogatively, interrogator, interrogatory, interrupt, interrupted, interrupter, interruption, intersect, intersecting, intersection, intersperse, interstate, interstellar, intersteller,