Synonyms of the word

ceremony

• n. A ritual with religious significance.
• n. An official gathering to celebrate, commemorate, or otherwise mark some event.
• n. A formal socially established behaviour, often in relation to people of different ranks.
• n. (obsolete) An omen or portent.

activity

• n. The state or quality of being active; nimbleness; agility; vigorous action or operation; energy; active…
• n. Something done as an action or a movement.
• n. Something done for pleasure or entertainment, especially one involving movement or an excursion.
• n. Use (of internet, Playstation, bank account etc.).

affair

• n. That which is done or is to be done; matter; concern; business of any kind, commercial, professional,…
• n. Any proceeding or action which it is wished to refer to or characterize vaguely.
• n. (military) An action or engagement not of sufficient magnitude to be called a battle.
• n. A material object (vaguely designated).
• n. An adulterous relationship (from affaire de cœur).
• n. A party or social gathering, especially of a formal nature.
• n. (slang, now rare) The (male or female) genitals.

ceremonial

• adj. Of, relating to, or used in a ceremony; ritual or formal.
• adj. (archaic) Observant of forms; ceremonious.
• n. A ceremony, or series of ceremonies, prescribed by ritual.

function

• n. What something does or is used for.
• n. A professional or official position.
• n. An official or social occasion.
• n. A relation where one thing is dependent on another for its existence, value, or significance.
• n. (mathematics) A relation in which each element of the domain is associated with exactly one element of…
• n. (computing) A routine that receives zero or more arguments and may return a result.
• n. (biology) The physiological activity of an organ or body part.
• n. (chemistry) The characteristic behavior of a chemical compound.
• n. (anthropology) The role of a social practice in the continued existence of the group.
• v. (intransitive) to have a function.
• v. (intransitive) to carry on a function; to be in action.

observance

• n. The practice of complying with a law, custom, command or rule.
• n. The custom of celebrating a holiday or similar occasion.
• n. Observation or the act of watching.
• n. (religion) A rule governing a religious order, especially in the Roman Catholic church.

occasion

• n. A favorable opportunity; a convenient or timely chance.
• n. The time when something happens.
• n. An occurrence or state of affairs which causes some event or reaction; a motive or reason.
• n. Something which causes something else; a cause.
• n. (obsolete) An occurrence or incident.
• n. A particular happening; an instance or time when something occurred.
• n. Need; requirement, necessity.
• n. A special event or function.
• n. A reason or excuse; a motive; a persuasion.
• v. (transitive) To cause; to produce; to induce.