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.
Decade.
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.
The minimum period is two years and can be as long as ten years.
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.