topic sentence

or topical sentence


noun

a sentence that expresses the essential idea of a paragraph or larger section, usually appearing at the beginning.

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Origin of topic sentence

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for topic sentence

British Dictionary definitions for topic sentence

topic sentence

noun

a sentence in a paragraph that expresses the main idea or point of the whole paragraph
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for topic sentence

topic sentence

The main sentence in a paragraph, often the first sentence. It briefly conveys the essential idea of the paragraph.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.