verb (v)

• be the essential element(verb.change)

  Synonym:
  come down, reduce
  

  source: wordnet30
• be cooked until very little liquid is left(verb.change)

  Synonym:
  concentrate, decoct, reduce
  

  source: wordnet30
• cook until very little liquid is left(verb.change)

  Synonym:
  concentrate, reduce
  

  source: wordnet30