septennial

A major international conference is held on a septennial basis.

Definition

1. Adjective:
   • Occurring every seven years: "septennial" describes an event or action that takes place once in every seven-year period.
   • Lasting for seven years: "septennial" can also refer to something that continues or remains in effect for a duration of seven years.

Usage Examples

• Occurring every seven years:
  • The septennial census collects data on the population every seven years. (The census happens once each seven-year cycle.)
• Lasting for seven years:
  • The treaty was a septennial agreement, binding the nations for a period of seven years. (The treaty lasted for seven years.)

Advanced Usage

• "septennial celebration": a festival or commemoration held every seventh year.

  • The community held a septennial celebration to mark the founding of the town. (The celebration occurred once every seven years.)

• "septennial term": a period of office or service that lasts seven years.

  • The president served a septennial term before stepping down. (The term of office was exactly seven years.)

Variants and Related Words

• Septennium (noun): a period of seven years.

  • The project spanned a septennium, from 2010 to 2017. (The project lasted for seven years.)

• Septennially (adverb): in a manner that occurs every seven years.

  • The committee meets septennially to review the charter. (The committee meets once every seven years.)

Synonyms

• Seven-yearly: occurring every seven years (less common, but synonymous).
• Septenary: relating to the number seven or a group of seven (often used in mathematical or historical contexts).

Related Idioms