there·​on | \ t͟her-ˈȯn How to pronounce thereon (audio) , -ˈän\

Definition of thereon

1 : on that a text with a commentary thereon
2 archaic : thereupon

Examples of thereon in a Sentence

The highway and structures thereon are being repaired. a text with a commentary thereon

Recent Examples on the Web

No person having control or charge of a motor vehicle shall allow such vehicle to stand on any public highway unattended without first effectively setting the brakes thereon and stopping the motor of said vehicle. Nashelly Chavez, sacbee, "A Sacramento man was arrested after he left his car idling. That's a law? | The Sacramento Bee," 14 May 2018 Riot Fest tickets subject to terms and conditions thereon9) Other Conditions: The Contest judges will make all final decisions in any and all issues related to this Contest, and their decisions will be final and binding in all respects. RedEye Chicago, "Riot Fest Stage Naming Contest Official Rules 2017," 2 Aug. 2017 His writing on Fawlty Towers and his portrayal of Basil Fawlty thereon were so hysterical that, despite having lasted for only twelve episodes, it is thought of by many as the best sitcom ever made. Matt Blum, WIRED, "Happy Birthday, John Cleese!," 27 Oct. 2012

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thereon.' 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 thereon

before the 12th century, in the meaning defined at sense 1

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Time Traveler for thereon

The first known use of thereon was before the 12th century

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English Language Learners Definition of thereon

formal : on the thing that has been mentioned


there·​on | \ t͟her-ˈȯn How to pronounce thereon (audio) , -ˈän\

Kids Definition of thereon

: on that The road and the signs thereon.

More from Merriam-Webster on thereon

Rhyming Dictionary: Words that rhyme with thereon

Comments on thereon

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


appealing forcibly to the mind or reason

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