What does onto mean?

Definitions for ontoˈɒn tu, ˈɔn-; unstressed ˈɒn tə, ˈɔn-

Here are all the possible meanings and translations of the word onto.


  1. onto(Adjective)

    Assuming each of the values in its codomain; having its range equal to its codomain.

    Considered as a function on the real numbers, the exponential function is not onto.

  2. onto(Preposition)

    Upon; on top of.

    My cat just jumped onto the keyboard.

  3. onto(Preposition)

    Aware of.

    The thought-police were onto my plans of World domination.

  4. onto(Preposition)

    Being an onto function with a codomain of (see below).

    The exponential function maps the set of real numbers onto the set of positive real numbers.

Suggested Resources

  1. ONTO

    What does ONTO stand for? -- Explore the various meanings for the ONTO acronym on the Abbreviations.com website.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'onto' in Spoken Corpus Frequency: #1896

  2. Written Corpus Frequency

    Rank popularity for the word 'onto' in Written Corpus Frequency: #850

Anagrams for onto »

  1. noot, toon, Toon


  1. Chaldean Numerology

    The numerical value of onto in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of onto in Pythagorean Numerology is: 1

Images & Illustrations of onto

  1. ontoontoonto

Translations for onto

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