verb (v)

• determine the essential quality of(verb.stative)

  Synonym:
  define, delimitate, delineate, specify
  

  source: wordnet30
• be opposite to; of angles and sides, in geometry(verb.stative)

  Synonym:
  subtend
  

  source: wordnet30
• set, mark, or draw the boundaries of something(verb.cognition)

  Synonym:
  delimitate, demarcate
  

  source: wordnet30
• To fix the limits of; to demarcate; to bound.(verb)

  source: webster1913