noun

• (countable) Any condition, circumstance, opportunity or means, particularly favorable or chance to success, or to any desired end.
  "The enemy had the advantage of a more elevated position."
• (obsolete) Superiority; mastery; — used with of to specify its nature or with over to specify the other party.
  "Lest Satan should get an advantage of us."
• (countable, uncountable) Superiority of state, or that which gives it; benefit; gain; profit
  "the advantage of a good constitution"
• (tennis) The score where one player wins a point after deuce but needs the next to carry the game.

verb

• (transitive) to provide (someone) with an advantage, to give an edge to
  "I had almoſt forgotten to acquaint your honor, that one major Alford (who was in mr. Love's conſpiracy) was of the graund inqueſt at Saliſbury, and was very zealous in his highneſſe ſervice here, and his good affection and wiſe carriage here, did much advantage the buſſineſe."
• (reflexive) to do something for one's own benefit; to take advantage of
  "No man of courage vouchsafeth to advantage himselfe [translating s'avantager] of that which is common unto many."