Six - Six - Seis - Altı - Šest - Έξι

Balance, harmony, the first perfect number within the decade. It also symbolizes the unity of polarity, represented by the intertwined triangles, the upward-pointing as the male, the fire, the air and the downward-pointing as the feminine, the water and the earth.The six-pointed Star of David or the Salomons seal also represents perfect balance.

Six also refers to love (tarot), health, beauty, happiness. In the Occident, the six is the winning throw when rolling the dice. Six senses (dreaming is the sixth), the day and the night each have six sections.

Ancient Greece
Marriage, harmony, goddess Aphrodite. Happy coincidence, happiness.

Bible
Number of people rebelling against God and his people. Perfection, perfection, the six days of creation.

Islam and Sufism
In Islam, the six is the number of intellects. Also the word for God, Allah contains the six, because if you add up the numerical values of the individual letters, you come to 66. There are six articles of faith in Islam: faith in the only God, his angels, his revelation, his messengers (e.g. Adam, Noah, Abraham, Joseph, Moses, David, Solomon, Idries, Jonas, Jesus and most recently Mohammed), the Day of Judgment and life after death and predetermination.
Babylon
Number of Hadad. Six double months, six world ages
Buddhist
The universe has the number six, because with the four cardinal directions and the top and bottom it has six directions.