The difference between Animosity and Opposition

Animosity as a noun:

Violent hatred leading to active opposition; active enmity; energetic dislike.

Opposition as a noun:

The action of opposing or of being in conflict.

Opposition as a noun:

An opposite or contrasting position.

Opposition as a noun (astronomy):

The apparent relative position of two celestial bodies when one is at an angle of 180 degrees from the other as seen from the Earth.

Opposition as a noun (politics):

A political party or movement opposed to the party or government in power.

Opposition as a noun (legal):

In United States intellectual property law, a proceeding in which an interested party seeks to prevent the registration of a trademark or patent.

Opposition as a noun (chess):

A position in which the player on the move must yield with his king allowing his opponent to advance with his own king.

Opposition as a noun (logic):

The difference of quantity or quality between two propositions having the same subject and predicate.