Session (noun)

1. A period of time during which a court of law or legislature meets to conduct its business.
2. A period of time devoted to a particular activity, typically one that takes place regularly.
3. A meeting or series of meetings of a group, such as a parliament, court, or committee, for the transaction of business.

Origin:

Late middle english: from old french, from latin sessio(n-), from sess- "sat", from the verb sedere.

Examples:

1. The session of the court is about to begin.
2. The session of the legislature lasted for three months.
3. The session of the council was held in the morning.
4. The music session was held in the park.
5. The therapy session lasted for an hour.