Synonyms and related words :
active, active voice, amidships, arbitrational, arbitrative, average, axial, axis, balance, bisect, center, center of action, center of gravity, center on, center round, centermost, central, centralize, centralized, centric, centroid, centroidal, centrosymmetric, centrum, coming between, concentrated, core, dead center, double, epicenter, equatorial, equidistant, fold, generality, geocentric, going between, golden mean, halfway, happy medium, heart, hub, intercessional, intercessory, intercurrent, interior, interjacent, interlocutory, intermedial, intermediary, intermediate, intermediatory, intervenient, intervening, interventional, juste-milieu, kernel, key, marrow, mean, medial, median, mediating, mediative, mediatorial, mediatory, medio-passive, mediocre, mediocrity, mediterranean, medium, medulla, mesial, mesne, metacenter, mezzo, mid, middle course, middle ground, middle point, middle position, middle state, middle voice, middle-of-the-road, middlemost, middling, midland, midmost, midpoint, midriff, midships, midst, midway, nave, navel, norm, normal, nub, nuclear, nucleus, omphalic, omphalos, pacificatory, par, passive, passive voice, pith, pivot, pivotal, reflexive, rule, run, stomach, storm center, umbilical, umbilicus, via media, voice, waist