consisting of or lasting 200 years: a bicentennial period.
tercentennial. / (ˌtɜːsɛnˈtiːnərɪ) / adjective. of or relating to a period of 300 years. of or relating to a 300th anniversary or its celebration.
ses·qui·cen·ten·ni·al ˌses-kwi-sen-ˈten-ē-əl. : a 150th anniversary or its celebration. sesquicentennial adjective. Last Updated: 25 Dec 2022 - Updated example sentences.
Quadricentennial, kwod-ri-sen-ten′i-al, adj. pertaining to a period of 400 years.
a centennial. a period of 100 years; century.
Definitions of quincentenary. the 500th anniversary (or the celebration of it) synonyms: quincentennial.
millennium, a period of 1,000 years. The Gregorian calendar, put forth in 1582 and subsequently adopted by most countries, did not include a year 0 in the transition from bc (years before Christ) to ad (those since his birth). Thus, the 1st millennium is defined as spanning years 1–1000 and the 2nd the years 1001–2000.
A period of 30 years is equal to 3 decades. 30 years = 30/10 = 3 decades. A period of 30 years is 30% of a century.
Golden Jubilee: 50 years.
OUR QUASQUICENTENNIAL. The word quasquicentennial, meaning '125th anniversary, was engineered by... well, an engineer! In 1961, Frank W.
a person who is between 70 and 79 years old is a septuagenarian. a person who is between 80 and 89 years old is an octogenarian. a person who is between 90 and 99 years old is a nonagenarian.
2026 will mark the United States' semiquincentennial, or 250th anniversary.
According to Wikipedia, the preferred term for a 250th anniversary is Sestercentennial.
A centennial is a 100th anniversary, but what is a 175th anniversary? It's a demisemiseptcentennial, of course!
Silver jubilee marks a 25th anniversary, also known as a quadranscentennial anniversary.
sep·ten·ni·al sep-ˈte-nē-əl. : occurring or being done every seven years. : consisting of or lasting for seven years. septennially.
hexagenarian (plural hexagenarians) (uncommon, sometimes proscribed) Synonym of sixtysomething: a person between 60 and 69 years old.
The term to describe a million years is a "megaannum" which comes from the word parts "mega" which means "huge" and "annum" which means year.
There is no specific term for 100,000 years. Era and epoch can be used to reference a very long period of time but there is not a definitive definition of the length of time associated with them.
Save This Word! of or for 20 years. occurring every 20 years.
Currently two diamond anniversaries are celebrated – one at 60 and one at 75 years. The 75th anniversary is the original diamond anniversary and the 60th was added when Queen Victoria (English Empire Monarch) celebrated her Diamond Jubilee on her 60th anniversary of accession to the throne in 1897.
Decamillennium- A period of ten thousand years. Hectocentennial -A period of one hundred centuries. Equivalent to Decamillennium.
countable noun. A decade is a period of ten years, especially one that begins with a year ending in 0, for example, 1980 to 1989.
A person between 70 and 79 is called a septuagenarian. A person between 80 and 89 is called an octogenarian. A person between 90 and 99 is called a nonagenarian. A person between 100 and 109 is called a centenarian.