Adjective sectional has 2 senses

1. sectional - relating to or based upon a section (i.e. as if cut through by an intersecting plane); "a sectional view"; "sectional drawings"
   
2. sectional, sectioned - consisting of or divided into sections; "a sectional sofa"; "sectioned plates"
   Antonym: united (indirect, via divided)
   

Sectional

Adjective:

1. Relating to or consisting of sections.

2. Divided into distinct sections or parts.

Noun:

1. A piece of furniture composed of separate sections or modules that can be arranged or combined in various ways.

2. A person advocating for or supporting the division of a country or organization into smaller autonomous regions.

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• Sectional Furniture
• Sectional Couch
• Sectional Bookcase

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Sample Sentences:

Adjective:

1. I bought a sectional map of the city to help me navigate the different areas.
2. The novel can be read in any order as it is sectional.

Noun:

1. We decided to rearrange our living room by purchasing a new sectional.
2. He is known as a sectional and often argues for regional autonomy.