Acre – Definition & Meaning

An acre is a unit of measurement used to determine land area. It is commonly used in agriculture, real estate, and land surveying. The term “acre” has been in use for centuries, and it has evolved over time. In this article, we will explore the definition and meaning of acre.


An acre is defined as a unit of land measurement that equals 43,560 square feet. It is also equivalent to 4,840 square yards, or 0.4047 hectares. The acre is commonly used in the United States, Canada, and the United Kingdom.


The word “acre” comes from the Old English word “æcer,” which means “field” or “open land.” The term was first used in the 13th century to describe the amount of land that a team of oxen could plow in one day. Over time, the definition of acre has evolved to its current meaning.

Meaning in different dictionaries

The meaning of acre is consistent across different dictionaries. Merriam-Webster defines acre as “a unit of area equal to 43,560 square feet.” Oxford English Dictionary defines it as “a measure of land, originally one that could be plowed in a day, now standardized at 4,840 square yards or 43,560 square feet.”


The acre is commonly associated with agriculture and farming. It is used to measure the size of fields, crops, and pastures. It is also used in real estate to determine the size of a plot of land.


There are no synonyms for acre as it is a specific unit of measurement. However, some phrases that are commonly used to describe land area include “hectare,” “square foot,” and “square yard.”


There are no antonyms for acre as it is a unit of measurement.

The same root words

The word “acre” is derived from the Old English word “æcer,” which means “field” or “open land.” Some other words that share the same root include “agriculture,” “acorn,” and “acreage.”

Example Sentences

  1. The farm consists of 100 acres of land.
  2. The real estate agent estimated the property to be around 5 acres.
  3. The farmer planted corn on an acre of land.
  4. The land surveyor measured the lot to be 0.25 acres.
  5. The park spans over 20 acres of land.
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