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topic sentence

topic sentence

1 3.5
A sentence that tells the main idea of a paragraph
  • noun
  • /ˈtɑːpɪk ˈsɛntəns/
translation icon : oración temática
  • A strong topic sentence helps guide the reader through the main ideas of a paragraph.
  • write a topic sentence
  • develop a topic sentence

Examples

  • When permitted to draft, students were only to write the topic sentence and gain approval before adding details.

    Academic text (2014)
  • Use topic sentences to orient everybody.

    Academic text (2009)
  • Start with the topic sentence.

    Fiction book (2000)
  • Which sentence is the topic sentence?

    Fiction book (2000)
  • Like we discussed yesterday, I really want you all to focus on topic sentences more.

  • Better, your topic sentence should contain some reference to the previous paragraph.

    Academic text (2010)
  • For example, Ms. L told the students to write only the topic sentence of their text because she wanted to approve it before the students added details.

    Academic text (2014)
  • Each paragraph needs to contain a topic sentence, and paragraphs are to be arranged sequentially.

    Academic text (2001)
  • One way to assure coherence is to use the demonstrative adjective this or these in the topic sentence of the new paragraph.

    Academic text (2010)
  • Every essay should start with a well-defined topic sentence that summarizes the main argument.

How Central

thesis
  • Specialized
81 6.9
topic sentence
1 3.5
to support
572 2.1

Surface Forms

Morphology

topic + sentence

The meaning 'a sentence that states the main idea' is directly and transparently derived from combining 'topic' (subject of discussion) with 'sentence' (a grammatical unit). This straightforward noun+noun composition follows common English and cross‑linguistic patterns, so a B1 learner who knows both constituents will readily infer the MWE's meaning.

Etymology

Topic sentence comes from basic writing practice: the first sentence of a paragraph names the paragraph's topic and is a complete sentence, like a sign that shows what follows. That's why a topic sentence today means the sentence that states the paragraph's 'main idea' or 'subject'.