Synonyms to frontiers

boundary, Thule, Ultima Thule, ankle, articulation, balustrade, barrier, bisector, bitter end, border line, bordering, borderline, borders, bottom dollar, bound, boundary condition, boundary line, bounding, bounds, bourn, break boundary, breakoff point, butt, butt end, caesura, caudal, ceiling, cervix, circumscription, clinch, closure, coastal, colon, comma, compass, conclusive, confine, confinement, confines, connecting link, connecting rod, connection, continence, coupling, cutoff, cutoff point, deadline, definitive, delimitation, determinant, determinative, determining, diameter, discipline, divider, division line, dovetail, elbow, embrace, end, endmost, equator, eventual, extreme, extremity, fag end, farthest, farthest bound, fence, final, finish, floor, fringing, frontier, gliding joint, halfway mark, hedge, high-water mark, hinge, hinged joint, hip, interface, join, joining, joint, jumping-off place, juncture, knee, knuckle, last, limbic, limen, liminal, limit, limitation, limiting, limiting factor, limits, line, line of demarcation, link, littoral, low-water mark, lower limit, march, marginal, ma