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Adjacent vs. Adjoining: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on December 25, 2023
Adjacent means next to or adjoining, whereas adjoining implies touching or joined to something at a boundary or point.
Adjacent vs. Adjoining

Key Differences

Adjacent refers to something being next to or near another, highlighting proximity without implying direct contact. In contrast, adjoining indicates a direct connection or contact at a boundary or surface.
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Adjacent can describe things that are close but not necessarily touching, like buildings in a street. Adjoining, however, implies a physical connection, such as rooms sharing a common wall.
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The term adjacent is often used in a broader sense, applicable to areas, objects, or concepts that are near each other. Adjoining is more specific, denoting direct contact or connection.
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In geographical contexts, adjacent areas are near each other but might not share a border. Adjoining areas share a boundary or border directly.
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Adjacent is a term that can be used in both physical and abstract contexts, while adjoining is typically used to describe physical connections.
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Comparison Chart

Connection

Near but not necessarily touching
Physically touching or joined
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Usage Context

Both physical and abstract proximity
Primarily physical connection
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Geographical Implication

Close but may not share borders
Share a common border or area
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Abstract Use

Can describe non-physical closeness
Less commonly used abstractly
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Common Associations

Proximity in space or arrangement
Direct contact or connection
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Adjacent and Adjoining Definitions

Adjacent

Lying near or close to.
The coffee shop is adjacent to the bookstore.
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Adjoining

Being in direct contact.
The two buildings were adjoining, sharing a doorway.
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Adjacent

Next to or adjoining.
The two buildings are adjacent to each other.
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Adjoining

Joined to or by a common boundary.
The adjoining rooms share a wall.
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Adjacent

Bordering on.
The garden is adjacent to the house.
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Adjoining

Connected to something at a point.
The hotel has an adjoining restaurant.
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Adjacent

Neighboring in space.
The adjacent rooms were both occupied.
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Adjoining

Attached or annexed.
The adjoining annex serves as a guest house.
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Adjacent

Close to; lying near
Adjacent cities.
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Adjoining

Touching or contiguous.
The garage is adjoining the house.
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Adjacent

Next to; adjoining
Adjacent garden plots.
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Adjoining

Neighboring; contiguous.
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Adjacent

Lying next to, close, or contiguous; neighboring; bordering on.
Because the conference room is filled, we will have our meeting in the adjacent room.
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Adjoining

Being in contact at some point or line; joining to
An adjoining room
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Adjacent

Just before, after, or facing.
The picture is on the adjacent page.
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Adjoining

Present participle of adjoin
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Adjacent

Related to; suggestive of; bordering on.
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Adjoining

Joining to; contiguous; adjacent; as, an adjoining room.
Upon the hills adjoining to the city.
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Adjacent

Something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite.
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Adjoining

Having a common boundary or edge; touching;
Abutting lots
Adjoining rooms
Rhode Island has two bordering states; Massachusetts and Conncecticut
The side of Germany conterminous with France
Utah and the contiguous state of Idaho
Neighboring cities
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Adjacent

Next to; beside.
The house adjacent to the school was demolished.
A notice was sent to the house adjacent the school.
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Adjacent

(figuratively) Related to; suggestive of; bordering on.
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Adjacent

Lying near, close, or contiguous; neighboring; bordering on; as, a field adjacent to the highway.
I find that all Europe with her adjacent isles is peopled with Christians.
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Adjacent

That which is adjacent.
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Adjacent

Nearest in space or position; immediately adjoining without intervening space;
Had adjacent rooms
In the next room
The person sitting next to me
Our rooms were side by side
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Adjacent

Having a common boundary or edge; touching;
Abutting lots
Adjoining rooms
Rhode Island has two bordering states; Massachusetts and Conncecticut
The side of Germany conterminous with France
Utah and the contiguous state of Idaho
Neighboring cities
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Adjacent

Near or close to but not necessarily touching;
Lands adjacent to the mountains
New York and adjacent cities
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Adjacent

Situated side by side.
The adjacent seats were taken by a family.
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Repeatedly Asked Queries

Does adjacent imply physical touch?

No, it means near or close, but not necessarily in contact.
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Can adjacent refer to areas that don't share borders?

Yes, adjacent areas can be close without sharing borders.
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Must adjoining objects share a common boundary?

Yes, adjoining objects touch or are joined at a boundary.
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Can adjoining refer to temporary connections?

Generally, it refers to permanent or semi-permanent connections.
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Is adjoining used for non-physical contexts?

Rarely. It typically describes physical connection.
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Is adjacent suitable for abstract concepts?

Yes, it can describe abstract forms of proximity.
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Can adjoining be used for distant objects?

No, adjoining implies direct physical contact.
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Is adjacent a broader term than adjoining?

Yes, adjacent has a broader usage in terms of proximity.
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Does adjoining imply a stronger connection than adjacent?

Yes, since it denotes direct physical contact or joining.
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What are some synonyms for "Adjacent"?

Synonyms include "neighboring," "next to," and "bordering."
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Are "Adjacent" and "Adjoining" equally formal?

Both words are considered formal and can be used in professional and academic contexts.
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Does adjacent always mean side by side?

Not necessarily. It means near, which can include various arrangements.
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What are some synonyms for "Adjoining"?

Synonyms include "connected," "attached," and "bordering."
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Can "Adjacent" and "Adjoining" be used in casual conversation?

Yes, they can be used in casual conversation when discussing spatial relationships.
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Can adjacent be used in a geographical context?

Yes, to describe nearby locations or features.
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About Author
Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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