Is there a word for 2 decades?

Vicennial Definition & Meaning – Merriam-Webster.

What does 2 decades mean?

a period of ten consecutive years. 2.

What is the name for 20 years?

Latin-derived numerical names
AnniversaryLatin-derived termOther terms
19 yearsNovdecennialJade
20 yearsVigintennial / Vicennial / VicenaryChina/Porcelain
25 yearsQuadranscentennialSilver jubilee
30 yearsTricennial / TricenaryPearl jubilee

What is a period of 50 years called?

A period of fifty years is called semi-centennial, Alternatively, if a period of ten years is called a decade, then fifty years could be called five decades, It is also half a century.

What is every ten years called?

Definition of decennial

1 : consisting of or lasting for 10 years. 2 : occurring or being done every 10 years the decennial census.

What is another word for 20?

Find another word for twenty. In this page you can discover 22 synonyms, antonyms, idiomatic expressions, and related words for twenty, like: vicennial, 20, twentieth, twenty-five, vicenary, sixteen, thirty-five, fifty, thirty, one hundred and two-hundred.

What is a half a century called?

50-year-old. 50-year. quinquagenarian. semicentennial.

What are 100 years called?

a centennial. a period of 100 years; century.

What is another name for base 2?

Binary is also known as Base 2. This means it is composed of only 0’s and 1’s. For example 9 in binary/base 2 is 1001.

What is a 1000 years called?

millennium, a period of 1,000 years. … Thus, the 1st millennium is defined as spanning years 1–1000 and the 2nd the years 1001–2000. Although numerous popular celebrations marked the start of the year 2000, the 21st century and 3rd millennium ad began on January 1, 2001.

Is 50 years old half a century?

1. a period of 50 years: during the past half-century.

What is a Quinquagenarian?

Definition of quinquagenarian

(Entry 1 of 2) : fifty years old : characteristic of a person of such an age.

What is 100000000 years called?

Answer and Explanation: Become a member to unlock this answer! A million years is called a megaannum, which is often abbreviated ‘Ma. ‘ This term comes from the word parts ‘mega’ which means ‘huge’ and ‘annum’…

What is 10 millenniums called?

Decamillennium– A period of ten thousand years.

What is a million years called?

A million years is called a megaannum, which is often abbreviated ‘Ma. ‘ This term comes from the word parts ‘mega’ which means ‘huge’ and ‘annum’…

How long is a decade?

10 years
A decade is a period of 10 years. The word is derived (via French and Latin) from the Ancient Greek: δεκάς, romanized: dekas, which means a group of ten. Decades may describe any ten-year period, such as those of a person’s life, or refer to specific groupings of calendar years.

What is past millennium?

The answer is Eon. Eon often refers to a span of one billion years. Acccumulation is correct: the word myriad technically meant 10,000 and could be useful in 8,000 or so years.

How long is a century?

100 years
A century is a period of 100 years. Centuries are numbered ordinally in English and many other languages. The word century comes from the Latin centum, meaning one hundred.