on·​to | \ ˈȯn-(ˌ)tü How to pronounce onto (audio) , ˈän- \

Definition of onto

 (Entry 1 of 2)

1 : to a position on We climbed onto the roof. Turn left onto Fifth Avenue.
2 : in or into a state of awareness about put me onto your methods was onto something that should have been pursued further— Bosley Crowther
3 used as a function word to indicate a set each element of which is the image of at least one element of another set a function mapping the set S onto the set T



Definition of onto (Entry 2 of 2)

: mapping elements in such a way that every element in one set is the image of at least one element in another set a function that is one-to-one and onto

Examples of onto in a Sentence

Preposition We climbed onto the building's roof. The book fell onto the floor. The water spilled onto the floor. The cowboy leaped onto his horse. Transfer the data onto a disk. Turn left onto Third Street at the traffic light. See More
Recent Examples on the Web: Preposition Erin Barill, the Colts’ director of sports medicine, trotted onto the field and knew immediately. The Indianapolis Star, 7 Aug. 2022 As the twos started coming onto the field, J.K. Johnson was sharing a side with Brown while Jordan Hancock shared a side with Burke. Stephen Means, cleveland, 5 Aug. 2022 Minutes before, boos began to rain down onto the field from Thorns fans. oregonlive, 5 Aug. 2022 Gill is listed at 6-5, 275-pounds while Howard carries an immense 6-6, 340-pound onto the field. Evan Dudley, al, 5 Aug. 2022 Decked out in a red petticoat and sporting a red parasol, Clifford prances onto a cotton field to confront Corbin Kyle (Dan J. Johnson), one of the orchestrators of the deal. Doreen St. Félix, The New Yorker, 1 Aug. 2022 To disguise the defense's intentions and maintain an ability to stop the pass or the run on later downs, coordinators Ray Rhodes and later Fritz Shurmur would stick with their base defense when opponents sent extra receivers onto the field. Fox News, 1 Aug. 2022 There were no boos directed toward Watson at practice, but All-Pro defensive end Myles Garrett and standout running back Nick Chubb were welcomed onto the field with much louder, prolonged ovations. Brian Dulik, Chron, 30 July 2022 Trainers immediately rushed onto the field as Castano dropped to his knees while holding his forehead. Bobby Nightengale, The Enquirer, 29 July 2022 See More

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

First Known Use of onto


1581, in the meaning defined at sense 1


1942, in the meaning defined above

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Dictionary Entries Near onto

on tick



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Statistics for onto

Last Updated

11 Aug 2022

Cite this Entry

“Onto.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onto. Accessed 17 Aug. 2022.

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More Definitions for onto


on·​to | \ ˈȯn-(ˌ)tü How to pronounce onto (audio) , ˈän- \

Kids Definition of onto

: to a position on or against I leaped onto the horse.

More from Merriam-Webster on onto

Nglish: Translation of onto for Spanish Speakers

Britannica English: Translation of onto for Arabic Speakers


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