decennial
Once per decade
Decennial means occurring every ten years or lasting for ten years.
A decennial census counts the population once per decade.
A decennial anniversary marks ten years since an event.
The word appears most often in official or formal contexts: the decennial review of the treaty, decennial celebrations.
Ordinal for position nine-plus-one
- celebrationFestive event marking occasion
- commemorationAct of honoring memory
- milestoneNotable event marking progress
- jubileeSpecial anniversary observance
tin · aluminum · marriage · wedding · partnership · tradition · renewal · ceremony
Lasting a decade
- cycleRepeating sequence of events
- intervalDuration between two points
- recurringHappening repeatedly over time
- recurrentHappening multiple times
cyclical · periodic · regular · scheduled · biennial · quinquennial
Systematic data collection
- enumerationSequential listing of items
- populationAll inhabitants combined
- demographicsStatistical population characteristics
- statisticsCollected numerical information
census · households · sampling · questionnaire · socioeconomic · residents · headcount · tabulation
Notable point of reference
- benchmarkStandard for comparison
- achievementAccomplished goal or deed
- watershedDrainage area boundary
- markerSomething that signals location
turning point · culmination · retrospective · reflection · progress · accomplishment
tenth
Ordinal for position nine-plus-one
- celebrationFestive event marking occasion
- commemorationAct of honoring memory
- milestoneNotable event marking progress
jubilee · tin · aluminum · marriage · wedding · partnership · tradition · renewal · ceremony · observance
ten-year
Lasting a decade
- cycleRepeating sequence of events
- intervalDuration between two points
- recurringHappening repeatedly over time
recurrent · cyclical · periodic · regular · scheduled · biennial · quinquennial
survey
Systematic data collection
- enumerationSequential listing of items
- populationAll inhabitants combined
- demographicsStatistical population characteristics
statistics · census · households · sampling · questionnaire · socioeconomic · residents · headcount · tabulation · apportionment
landmark
Notable point of reference
- benchmarkStandard for comparison
- achievementAccomplished goal or deed
- watershedDrainage area boundary
marker · turning point · culmination · retrospective · reflection · progress · accomplishment
- anniversarieswedding anniversary, golden anniversary, silver anniversary, first anniversary, diamond anniversary
- commemorationscommemoration, remembrance, memorial service, tricentennial, quincentennial
- Censuscensus bureau, census tract, enumeration, enumerator, headcount
- Deca- wordsdecimeter, decaliter, decameter, decapod, decuple
- cycleslife cycle, cycle, circle of life, cycles, period
- Decades1920s, 1930s, 1940s, 1950s, 1960s
decennialannual
Occurring every year
yearly · centennial · biannual · semiannual · monthly
decennialsporadic
Occurring irregularly, infrequently
irregular · one-time · nonrecurring · random · occasional
decade, decimal, decimate, centennial, millennial, bicentennial, decathlon, decagon, septennial