Webster 1913 Edition
ongegn. The s is adverbial, orig. a genitive ending. See
Abreast; opposite to; facing; towards;
as,; – in this sense often preceded by over.
againstthe mouth of a river
Jacob saw the angels of God come
From an opposite direction so as to strike or come in contact with; in contact with; upon;
as, hail beats.
In opposition to, whether the opposition is of sentiment or of action; on the other side; counter to; in contrariety to; hence, adverse to;
againstlaw; to run a race
The gate would have been shut
againstthe use of steam.
By of before the time that; in preparation for; so as to be ready for the time when.
[Archaic or Dial.]
Urijah the priest made it,
againstKing Ahaz came from Damascus.
2 Kings xvi. 11.
Against the sun,
in a direction contrary to that in which the sun appears to move.
Webster 1828 Edition
AGAINST, prep. agenst'.
1.In opposition; noting enmity or disapprobation.
His hand will be against every man. Gen. 16.
I am against your pillows. Ez. 8.
2.In opposition, noting contrariety, contradiction, or repugnance; as, a decree against law, reason or public opinion.
3.In opposition, noting competition, or different sides or parties; as, there are twenty votes in the affirmative against ten in the negative.
4.In an opposite direction; as, to ride against the wind.
5.Opposite in place; abreast; as, a ship is against the mouth of a river. In this sense it is often preceded by over.
Aaron lighted the lamps over against the candlesticks.
6.In opposition, noting adversity, injury, or contrariety to wishes; as, this change of measures is against us.
7.Bearing upon; as, one leans against a wall.
8.In provision for; in preparation for.
Urijah made it against king Ahaz came from Damascus.
In this sense against is a preposition, with the following part of the sentence for an object. See After, prep. def. 2.
In short, the sense of this word is opposition, variously modified according to its application to different objects.