Webster's Revised Unabridged Dictionary · 1913

Advantage

Advantage (?; 61, 48) , noun

[Old English avantage, avauntage, French avantage, from avant before. See Advance, and compare Vantage.]

1.
Any condition, circumstance, opportunity, or means, particularly favorable to success, or to any desired end; benefit; as, the enemy had the advantage of a more elevated position.
Give me advantage of some brief discourse. — Shakespeare
The advantages of a close alliance. — Macaulay
2.
Superiority; mastery; -- with of or over.
Lest Satan should get an advantage of us. — 2 Cor. ii. 11
3.
Superiority of state, or that which gives it; benefit; gain; profit; as, the advantage of a good constitution.
4.
Interest of money; increase; overplus (as the thirteenth in the baker's dozen). [Obsolete]
And with advantage means to pay thy love. — Shakespeare
5.
(Tennis) The first point scored after deuce.
Collocations (3)
Advantage ground , vantage ground. [Rare] — Clarendon
To have the advantage of , to have a personal knowledge of one who does not have a reciprocal knowledge. You have the advantage of me; I don't remember ever to have had the honor. — Sheridan
To take advantage of , to profit by; (often used in a bad sense) to overreach, to outwit.

Advantage ({not transcribed}) , transitive verb

[French avantager, from avantage. See Advance.]

To give an advantage to; to further; to promote; to benefit; to profit.
The truth is, the archbishop's own stiffness and averseness to comply with the court designs, advantaged his adversaries against him. — Fuller
What is a man advantaged, if he gain the whole world, and lose himself, or be cast away? — Luke ix. 25
Collocations (1)
To advantage one's self of , to avail one's self of. [Obsolete]