[ ruhn-on, -awn ]
/ ˈrʌnˌɒn, -ˌɔn /
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of or designating something that is added or run on: a run-on entry in a dictionary.
Prosody. (of a line of verse) having a thought that carries over to the next line, especially without a syntactical break.
run-on matter.
Automotive. after-run.
"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."
Question 1 of 7
IS and ARE are both forms of which verb?

Origin of run-on

First recorded in 1900–05; adj., noun use of verb phrase run on
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use run-on in a sentence

British Dictionary definitions for run-on

run on

verb (adverb)
(intr) to continue without interruption
to write with linked-up characters
printing to compose text matter without indentation or paragraphing
noun run-on
  1. text matter composed without indenting
  2. (as modifier)run-on text matter
  1. a word added at the end of a dictionary entry whose meaning can be easily inferred from the definition of the headword
  2. (as modifier)a run-on entry
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

Other Idioms and Phrases with run-on

run on


Keep going, continue; also, remain in effect. For example, That murder trial has been running on for months, or How much longer can this debt be allowed to run on? [Late 1500s]


Talk at length; see go on, def. 5.


Continue a text without a break; see run in, def. 2.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.