1) Define 2) Delimit 3) Demark 4) Limit 1) Differentiate 2) Distinguish 3) Secern 4) Secernate 5) Separate 6) Severalise 7) Severalize 8) Tell 9) Tell apart 10) To delimit 11) To distinguish 
• (v. t.) To mark by bounds; to set the limits of; to separate; to discriminate.
De·mar'cate transitive verb [ See Demarcation .] To mark by bounds; to set the limits of; to separate; to discriminate. Wilkinson. 
To separate, or to indicate the interface between two areas.
[v] - separate clearly 2. [v] - set, mark, or draw the boundaries of something
delimit verb set, mark, or draw the boundaries of something
to determine or mark off the boundaries or limits of: to demarcate a piece of property. · to separate distinctly: to demarcate the lots with fences.
separate clearly, as if by boundaries