None.
Opposite leaves are opposite each other, on opposite sides of the plant stem. Alternate leaves are on opposite sides of the stem but they are higher or lower than each other - not opposite
i think it is
Arctic and Antarctic are opposite each other.
They have opposite signs.
Opposite angles are equal to each other
opposite charges attract each other and like charges repel each other.
Complementary colors are opposite to each other on the color wheel.
Vertically opposite angles. (vert. opp.)
In a parallelogram opposite sides are parallel to each other.
They are the sides facing each other at opposite sides.
When two opposite electrical forces are near each other, they will attract each other. This attraction is due to the presence of opposite charges, which exert a force on each other. The strength of the attraction will depend on the magnitude of the charges and the distance between them.
Enemy would be the opposite of friendship. Friendship is when you like and care about each other, and want each other to do well. The exact opposite is true of enemies.