Middle1. (a.) Equally distant from the extreme either of a number of things or of one thing; mean; medial; as, the middle house in a row; a middle rank or station in life; flowers of middle summer; men of middle age.
2. (a.) Intermediate; intervening.
3. (n.) The point or part equally distant from the extremities or exterior limits, as of a line, a surface, or a solid; an intervening point or part in space, time, or order of series; the midst; central portion
4. (n.) The waist.
Thesaurus Entries
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