A period of ten years is called a decade. Sometimes a decade is used more specifically, to refer to a ten-year period that starts with a year that ends in zero. For example, "the sixties" or "the 1960s" refers to the years 1960-1969.
ten-year
A period of 100 years is called a century.
There is no single word in English for a period of 300 years. Three centuries. As an adjective, or a noun referring to the anniversary of 300 years, you could use tricentennial.
She has served as a nurse for an entire decade.
Twenty of anything is called a score. This can be years, eggs, cars, whatever. Although this term is still used and recognized, it is becoming antiquated. If you're looking for a stand alone word for 20 years (i.e. not including the word years) there isn't one, but a decade is 10 years, so you could say two decades. A bit more on score: Score is singular when used for a specific quantity and plural for indeterminate quantities, just like hundred, thousand, million, etc. For example: ten score cars went over the bridge; two hundred cars went over the bridge; scores of cars went over the bridge; hundreds of cars went over the bridge.
A period of ten years is a decade.
The period of ten years is called a decade. A decade consists of ten consecutive years, typically numbered from a specific starting point. This term is commonly used in various contexts such as history, economics, and demographics to refer to a specific timeframe of ten years.
Decade
A period of ten thousand years is called a decamillennium. The prefix "deca-" denotes ten, and "millennium" refers to a period of one thousand years. Therefore, a decamillennium is a unit of time equal to ten millennia or ten thousand years.
ten-year
a decade is a period of ten years, while a century is a period of 100 years.
A ten year period is a decade.
A period lasting ten years, or any ten year period.
A period of ten years is called a "decade." The term is commonly used to refer to any ten-year span, such as the 1980s or the 2000s. Decades can be significant in cultural, historical, and social contexts, often characterized by specific trends or events.
Decade.
A decade is a period of ten years. There are a couple of other words that can be used to describe a ten year period. Decennary or decennium are two such synonyms.
The minimum period is two years and can be as long as ten years.