Pocket Thesaurus
Antonyms of boundary
perimeter, barrier, borderline, frontier, confines, edge, horizon, line, border, frame, circumscription, rim, radius, verge, mete, pale, brink, borderland, ambit, end, skirt, mark, terminal, periphery, hem, march, environs, extent, compass, precinct, beginning, outpost, circumference, terminus, mere, outline, extremity, fringe, termination, margin, side, bounds, limits, purlieus, abuttals, line of demarcation
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