## What do you call period of 1000 years?

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.

**What is the word for 1000?**

thousand

A thousand is a number equal to 10 times 100. In numerals, it’s 1,000 or 1000. The word thousand is almost always preceded by the word a (as in a thousand, which means the same thing as 1,000) or by another number, as in two thousand (2,000), ten thousand (10,000), or nine hundred ninety-nine thousand (999,000).

### What is the term for 10 millennia?

Decamillennium- A period of ten thousand years. Hectocentennial -A period of one hundred centuries.

**What is the name for 10 centuries?**

The word is Millenium. All three words are variations on the Latin word roots for 10 (dece— also same in ancient Greek: deka), 100 (cent), and 1,000 (mille).

#### What is the correct name for a thousand million?

1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001.

**Is it correct to call a thousand years a century?**

Originally Answered: If decade means 10 years and century means 100 years, what word means 1000 years? The word is Millenium. All three words are variations on the Latin word roots for 10 (dece— also same in ancient Greek: deka), 100 (cent), and 1,000 (mille).

## Is there a word for 10000 years?

10,000 years is called ‘decem millenniuum’ or myria-annum (though these are not commonly used).

**What is the name for 100 000 years?**

There is a word for 1000 years, millennium, millennia or millenniums in plural. Myrioi means 100000 years. A million years is megaannum.

### What does M stand for math?

In algebra, the letter “m” refers to the slope of a line. The slope of a line determines both its steepness and direction.