Observance (noun)

1. The act of observing or paying attention to a particular event, tradition, or custom, often in a religious or cultural context.
2. The practice of honoring or celebrating a particular event, tradition, or custom, often in a religious or cultural context.

Origin:

Derived from the latin word 'observantia' meaning 'attention to' or 'keeping of'.

Examples:

1. The observance of Ramadan involves fasting from dawn to sunset for one month.
2. The observance of Memorial Day is a time for honoring those who have died in service to the country.
3. The observance of Hanukkah involves lighting candles and exchanging gifts.
4. The observance of Lent is a period of fasting, reflection, and penitence in the Christian faith.
5. The observance of wedding traditions, such as exchanging vows and rings, is a way to symbolize the couple's commitment to each other.