Adjacencies – Definition & Meaning

Adjacencies are a common term used in various fields, including mathematics, geography, and business. The word “adjacency” refers to the state of being adjacent, which means being next to or adjoining something else. In this article, we will explore the meaning, origin, and associations of adjacencies.


The term “adjacency” is defined as the state of being adjacent or neighboring. In mathematics, adjacency refers to the relationship between two objects that are next to each other. In geography, adjacency is used to describe the relationship between two places that share a border or are located near each other.


The word “adjacency” comes from the Latin word “adjacere,” which means “to lie near.” The term has been used in the English language since the 16th century.

Meaning in different dictionaries

According to the Merriam-Webster dictionary, adjacencies are defined as “the quality or state of being adjacent.” The Oxford English Dictionary defines adjacencies as “the state of being adjacent or contiguous; proximity.”


The term “adjacency” is often associated with the concept of proximity. It is used in various fields to describe the relationship between two or more objects, places, or concepts that are located near each other.
In business, adjacencies are used to describe the relationship between different products or services that are related to each other. For example, a company that produces smartphones may also produce accessories such as cases, chargers, and headphones. These products are considered adjacencies because they are related to the main product but are not the primary focus of the company.
In geography, adjacencies are used to describe the relationship between two countries or regions that share a border. For example, the United States and Canada share a border, and their relationship is considered an adjacency.


Some synonyms of adjacencies include proximity, contiguity, nearness, and closeness.


Some antonyms of adjacencies include distance, remoteness, and separation.

The same root words

The word “adjacent” is the root word of adjacencies. Other words that share the same root include adjacency matrix, adjacent angles, and adjacent sides.

Example Sentences

Here are some example sentences that use the term “adjacencies”:

  • The company is looking to expand its product line by adding adjacencies such as accessories and services.
  • The two countries have a strong adjacency and work closely together on trade and security issues.
  • The adjacency matrix is a mathematical tool used to represent the relationships between objects in a graph.
  • The hotel room was located in an ideal position, with all the amenities and attractions in close adjacency.
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