Synonyms of boundary in English:

boundary


See definition of boundary

noun

1‘the river marks the boundary between the two countries’

SYNONYMS
border, frontier, borderline, partition, dividing line, bounding line

2‘the boundary between art and advertising’

SYNONYMS
dividing line, divide, division, borderline, demarcation line, line of demarcation, cut-off point, threshold

3‘he walked the boundary of his estate’

SYNONYMS
bounds, confines, limits, outer limits, extremities, margins, edges, fringes
border, periphery, perimeter, circumference, rim, circuit
literary marge, bourn, skirt

4boundaries‘the pupils probed the boundaries of accepted behaviour’

SYNONYMS
limits, parameters, bounds, outer limits, confines, extremities, barriers, thresholds
ambit, compass