verb
1.
to mark the limits of
demarcate the boundary between two countries
Synonyms: bound, delimit, delimitate, determine, limit, mark (out), measure
Related Word: establish, fix, set; assign, define, prescribe; circumscribe, confine, restrict
2.
Synonyms: distinguish , differentiate, discriminate, separate, set apart, set off
Related Word: insulate, isolate, seclude, segregate, sequester