guide·​line | \ ˈgīd-ˌlīn How to pronounce guideline (audio) \

Definition of guideline

: a line by which one is guided: such as
a : a cord or rope to aid a passer over a difficult point or to permit retracing a course
b : an indication or outline of policy or conduct

Examples of guideline in a Sentence

Recent Examples on the Web

None of those guidelines were followed when the legislature last drew district maps in 2011 and 2017. Michael Wines, New York Times, "The Battle Over the Files of a Gerrymandering Mastermind," 4 Sep. 2019 The problem is that much of medicine falls outside of established clinical guidelines. The Atlantic, "The Conversation," 18 Aug. 2019 However, some of the guidelines for hiking seem to get overlooked time and time again, either out of lack of knowledge or intentionally. Mindy Sink, The Know, "What is proper trail etiquette? An expert lays out the dos and don’ts of hiking," 16 Aug. 2019 The death knell for the Verizon-Tumblr union came in fall 2018, when Tumblr, following the dictates of Apple’s content guidelines for the Apple Store, banned all adult content from the site. Aja Romano, Vox, "WordPress could give Tumblr the thing it needs most: stability," 13 Aug. 2019 A few weeks later, Paul Tasered a dead rat in another video, again a violation of YouTube's guidelines against violent and graphic content. Kate Cox, Ars Technica, "YouTube lets biggest stars off the hook for breaking rules, moderators say," 9 Aug. 2019 Some of the materials in its guidelines, Uber said, can be found in a typical airline manual. Michael J. Coren, Quartz, "Uber made a blueprint for safe self-driving cars it wants the rest of the industry to follow," 18 July 2019 The authors say the evidence underscores the importance of recent guidelines recommending that people have their blood pressure checked outside of doctors’ offices to screen for hypertension. Maggie O'neill,, "What is White Coat Hypertension? New Study Links the Condition to Increased Risk of Heart Trouble," 11 June 2019 Each of these safety concerns is mentioned in A.A.P. guidelines for well-child care. Rachel Pearson, The New Yorker, "The Durable Feeling That a Child Is Always at Risk," 10 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'guideline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of guideline

1785, in the meaning defined above

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Statistics for guideline

Last Updated

12 Sep 2019

Look-up Popularity

Time Traveler for guideline

The first known use of guideline was in 1785

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More Definitions for guideline



English Language Learners Definition of guideline

: a rule or instruction that shows or tells how something should be done


guide·​line | \ ˈgīd-ˌlīn How to pronounce guideline (audio) \

Kids Definition of guideline

: a rule about how something should be done

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Comments on guideline

What made you want to look up guideline? Please tell us where you read or heard it (including the quote, if possible).


formidable, illustrious, or eminent

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