Section

Definition

The word "section" can mean (1) a distinct part, subdivision, or segment of a whole (noun); (2) a passage or clause in a legal or written document (noun); (3) a group within a larger organization, such as an orchestra or company (noun); or (4) to divide something into parts (verb).

Parts of Speech

• Noun
• Verb

Pronunciation

American English

• IPA Pronunciation: /ˈsɛkʃən/
• Respelling: SEK‑shən

British English

• IPA Pronunciation: /ˈsɛkʃən/
• Respelling: SEK‑shən

Etymology

"Section" entered Middle English in the late 14th century from Latin sectiō “a cutting, division,” derived from secare “to cut.” The surgical and mathematical senses developed later.

Derivatives

• Sectional (adjective)
• Sectionalize (verb)
• Sectioning (noun / present participle)
• Cross‑section (noun)
• Dissection (noun, related)

Synonyms

• Part
• Segment
• Division
• Portion
• Subdivision

Antonyms

• Whole
• Totality
• Unity

Usage

"Section" is prevalent in architecture, law, medicine, academia, and everyday speech. Examples: "Refer to Section 3 of the contract," "The brass section of the orchestra tuned up," or "They will section the cake into eight slices."

Related Terms

• Chapter: A major division of a book or document.
• Clause: A distinct article or stipulation within a legal text.
• Slice: A thin, flat piece cut from something larger.

Detailed Definitions

Noun

• A distinct part or subdivision of a larger whole: Refers to any clearly defined portion separated conceptually or physically.
  • Example: "This book’s final section summarizes key findings."
• A paragraph, clause, or numbered subdivision in legal or formal writing: Indicates a specific portion for reference.
  • Example: "Compliance is required under Section 12(b) of the Act."
• A self‑contained unit within an organization or group: Describes a department, division, or instrument group.
  • Example: "The marketing section handles advertising campaigns."
• A distinct region of a country, city, or surface: Specifies a geographic or spatial subdivision.
  • Example: "They explored the historic section of the town."
• A thin slice cut for microscopic examination (biology): Used in histology and materials science.
  • Example: "The tissue section was stained for analysis."

Verb

• To divide or cut into parts: Indicates separating something into distinct pieces or regions.
  • Example: "Engineers will section the plot into residential lots."
• To create cross‑sections or slices for study: Pertains to laboratory or technical preparation.
  • Example: "Technicians sectioned the rock core to reveal strata."